{"title":"Benchmark Media","description":"","products":[{"product_id":"benchmark-hpa4-headphone-amplifier-preamplifier","title":"Benchmark HPA4 Headphone Amplifier \/ Preamplifier","description":"\u003ch2\u003e\u003cspan\u003eBENCHMARK HPA4 HEADPHONE \/ LINE AMPLIFIER\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv id=\"shopify-section-product-description-bottom-template\" class=\"shopify-section product-template product-description-bottom-template\"\u003e\n\u003cdiv class=\"container main content product-name--hpa4\"\u003e\n\u003cdiv class=\"product clearfix\"\u003e\n\u003cdiv class=\"sixteen columns\"\u003e\n\u003cdiv class=\"product-137788096532\" data-free-text=\"Price TBD\"\u003e\n\u003cdiv class=\"section product_section clearfix js-product_section align_right--images\" data-rv-handle=\"hpa4\"\u003e\n\u003cdiv class=\"sixteen columns\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003ch3\u003e\u003cspan\u003eTHE ULTIMATE HEADPHONE AMPLIFIER\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eBenchmark Media Systems, Inc. and THX, Ltd. have partnered to introduce the Benchmark HPA4 headphone\/line amplifier featuring THX Achromatic Audio Amplifier (AAA™) technology.\u003c\/p\u003e\n\u003cp\u003eTHX AAA™ reduces harmonic, intermodulation, and crossover distortion by 20 to 40 dB to guarantee a realistic and fatigue-free listening experience. It accomplishes this using a patented feed-forward topology to null conventional distortion and noise mechanisms, resulting in the world's most linear amplifier. THX AAA allows the amplifier to reach its maximum output power and sound pressure level (SPL) without producing the distortion that normally accompanies increased output levels in traditional amplifiers.\u003c\/p\u003e\n\u003cp\u003eFeaturing the flagship THX-888 amplifier design, the revolutionary HPA4 headphone amplifier incorporates the same THX AAA technology that Benchmark uses in the AHB2 power amplifier. The HPA4 delivers sonic perfection. Hear the music without any contamination from electronic noise or distortion. The HPA4 delivers power, audio fidelity, speed and accuracy over an utterly silent background.\u003c\/p\u003e\n\u003ch2\u003eTHE ULTIMATE LINE AMPLIFIER\u003c\/h2\u003e\n\u003cp\u003eThe THX-888 amplifier is driven by a Benchmark line amplifier that features relay gain control, relay input selection, and relay muting. The line amplifier incorporates the finest gold-contact relays available. The gain control has 256 steps in 0.5 dB increments. It also features a balance control. Relay closures are precisely timed to deliver silky-smooth volume changes. No other relay gain control offers this level of precision and performance. The HPA4 includes 4 independent 256-step attenuators: two for the L\u0026amp;R headphone outputs, and two for the L\u0026amp;R line outputs. To make this all happen, the HPA4 includes a total of 64 precision relays.\u003c\/p\u003e\n\u003ch2\u003e100% ANALOG SIGNAL PATH\u003c\/h2\u003e\n\u003cp\u003eThe HPA4 is 100% analog. It is designed to be driven from an external D\/A converter or an external analog source. The HPA4 is designed to provide the ultimate analog signal path between inputs and outputs. The HPA4 eclipses the performance of typical high-end preamplifiers by achieving much lower noise and distortion.\u003c\/p\u003e\n\u003ch2\u003eHIGH VOLTAGE, HIGH CURRENT AND HIGH POWER\u003c\/h2\u003e\n\u003cp\u003eThe THX-888 amplifier can cleanly deliver high voltage into low-sensitivity high-impedance headphones and it can cleanly deliver high power and current into low-impedance headphones. The HPA4 delivers 11.9 Vrms into 300 Ohms and 6 Watts into 16 Ohms. Given these extreme capabilities, Benchmark has incorporated several protection systems to protect expensive headphones and the amplifier itself. These include DC detection, short-circuit detection, over-current protection, over-voltage protection, and thermal protection.\u003c\/p\u003e\n\u003ch2\u003eSPEED AND PRECISION\u003c\/h2\u003e\n\u003cp\u003eThe bandwidth of the HPA4 extends from 0.01 Hz to over 500 kHz. This means that the HPA4 delivers very precise amplitude and phase accuracy over the entire audio bandwidth. Wave shapes are accurately reproduced, and the entire spectrum is delivered with precise timing. The HPA4 will deliver musical overtones with life-like accuracy. This means that musical instruments are rendered without changing their sonic character.\u003c\/p\u003e\n\u003ch2\u003eBALANCED AND UNBALANCED I\/O\u003c\/h2\u003e\n\u003cp\u003eThe headphone output of the THX-888 amplifier features a 1\/4\" TRS and a 4-pin XLR. Both outputs deliver the full performance of the HPA4. However, we recommend the XLR4 due to its lower contact resistance. The HPA4 features two balanced stereo inputs and two unbalanced stereo inputs. The line amplifier provides one balanced stereo output, one balanced mono sum, and one unbalanced stereo output.\u003c\/p\u003e\n\u003ch2\u003eSYSTEM INTEGRATION\u003c\/h2\u003e\n\u003cp\u003eThe HPA4 includes IR remote control and can be operated using the optional Benchmark remote. The HPA4 is designed to work with the Benchmark DAC2 and DAC3 converters but may be driven from any high-end D\/A converter. When paired with a Benchmark DAC, a single remote control will operate both units.\u003cbr\u003e\u003cbr\u003eThe HPA4 is the perfect complement to the Benchmark AHB2. It may be the only preamplifier or line amplifier that exceeds the signal to noise ratio of the ultra-quiet AHB2. This means that the HPA4 will extract the full performance of the AHB2. In contrast, other preamplifiers limit the system noise performance because they cannot match the SNR performance of the AHB2. The HPA4 is the only line amplifier\/preamplifier that we recommend inserting between a DAC and the AHB2. The HPA4 can be inserted between a Benchmark DAC3 and AHB2 without degrading the system noise performance. With the HPA4 inserted, the DAC3's 32-bit digital gain control is replaced by the HPA4's more-resolving fully-analog relay gain control.\u003cbr\u003e\u003cbr\u003eTwo bidirectional 12V trigger ports can be used to link the HPA4 with external D\/A converters and power amplifiers. The trigger signal controls the power-up and power-down sequencing of the entire audio system. The trigger ports are compatible with most industry-standard trigger input or output ports, but can communicate bidirectionally with other Benchmark products.\u003c\/p\u003e\n\u003ch2\u003eTOUCH SCREEN\u003c\/h2\u003e\n\u003cp\u003eThe touch screen provides easy access to advanced features such as balance control, input level offsets, input names, screen dimming, remote control, and function locking. Help screens explain the special functions.\u003c\/p\u003e\n\u003ch2\u003eROTARY ENCODER\u003c\/h2\u003e\n\u003cp\u003eThe volume control knob features a high-quality optical encoder that is rated for heavy use. An acceleration feature makes it easy to move through the 256 volume steps while maintaining 0.5 dB\/step resolution. A press of the control knob toggles between headphone volume, line out volume, or both.\u003c\/p\u003e\n\u003ch2\u003eCONVENIENCE FEATURES\u003c\/h2\u003e\n\u003cp\u003eThe HPA4 includes independent on-screen mute buttons for the headphone and line outputs. Both can also be muted with the volume knob or with the optional remote control.\u003cbr\u003e\u003cbr\u003eThe HPA4 includes an on-screen -20 dB dim button that instantly reduces the level by 20dB. This function provides a temporary volume reduction and an easy return to the previous listening level. This control makes it easy to transition between a normal listening level and a background level. The dim function is also accessible from the optional remote control.\u003cbr\u003e\u003cbr\u003eInputs may be renamed and unused inputs may be disabled. Input levels can be trimmed to provide input-to-input level matching.\u003cbr\u003e\u003cbr\u003eScreen brightness is adjustable and timers can be set to dim or shut off the display. The screen can be locked to prevent access to advanced features.\u003c\/p\u003e\n\u003ch2\u003eCASEWORK\u003c\/h2\u003e\n\u003cp\u003eThe HPA4 is available with a black or silver faceplate and is designed to match the Benchmark AHB2 power amplifier. It occupies the same footprint as the Benchmark DAC1, DAC2 and DAC3 converters. The case features a milled faceplate and milled sides. Top, bottom, and rear panels are made from thick aluminum and feature a brushed texture. The HPA4 is built to last and will be a fine addition to your listening space.\u003c\/p\u003e\n\u003ch2\u003eDESIGNED, ASSEMBLED, AND TESTED IN THE USA\u003c\/h2\u003e\n\u003cp\u003eThis Benchmark product was designed, assembled, and tested in the USA using USA and imported components. Most major components are made in USA.\u003c\/p\u003e\n\u003ch2\u003eFEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTHX-888 (AAA™)Headphone Amplifier\u003c\/li\u003e\n\u003cli\u003eBenchmark Low-Noise Line Amplifier\u003c\/li\u003e\n\u003cli\u003e256-Step Fully-Balanced Relay Gain Control, 0.5 dB Steps\u003c\/li\u003e\n\u003cli\u003ePrecision Timed Relay Closures\u003c\/li\u003e\n\u003cli\u003ePrecision Metal Film Resistors\u003c\/li\u003e\n\u003cli\u003eGold-Contact Relays\u003c\/li\u003e\n\u003cli\u003eBalanced and Unbalanced I\/O\u003c\/li\u003e\n\u003cli\u003e6 Watts into 16 Ohm Headphones\u003c\/li\u003e\n\u003cli\u003e11.5 Vrms into 300 Ohm Headphones\u003c\/li\u003e\n\u003cli\u003e0.01 Hz to 500 kHz\u003c\/li\u003e\n\u003cli\u003eSNR \u0026gt; 135 dB\u003c\/li\u003e\n\u003cli\u003eTHD \u0026lt; 125 dB (0.00006%) under full load\u003c\/li\u003e\n\u003cli\u003eShort-Circuit Protection\u003c\/li\u003e\n\u003cli\u003eDC Protection\u003c\/li\u003e\n\u003cli\u003eOver-Voltage Protection\u003c\/li\u003e\n\u003cli\u003eOver-Current Protection\u003c\/li\u003e\n\u003cli\u003eThermal Protection\u003c\/li\u003e\n\u003cli\u003eTouch Screen Control\u003c\/li\u003e\n\u003cli\u003eIR Remote Control (optional)\u003c\/li\u003e\n\u003cli\u003e2 Balanced Stereo Line Inputs\u003c\/li\u003e\n\u003cli\u003e2 Unbalanced Stereo Line Inputs\u003c\/li\u003e\n\u003cli\u003e1 Balanced Stereo Line Output\u003c\/li\u003e\n\u003cli\u003e1 Unbalanced Stereo Line Output\u003c\/li\u003e\n\u003cli\u003e1 Balanced Mono Sum Output\u003c\/li\u003e\n\u003cli\u003e2 Bidirectional 12V Trigger Ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\n\u003cp\u003e(using balanced inputs at +24 dBu)\u003c\/p\u003e\n\u003ch3\u003eTHX-888™HEADPHONE OUTPUT:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHD \u0026lt; -125 dB (0.00006%)\u003c\/li\u003e\n\u003cli\u003eSNR \u0026gt; 131 dB, unweighted, 20-20 kHz\u003c\/li\u003e\n\u003cli\u003eSNR \u0026gt; 135 dB, A-weighted\u003c\/li\u003e\n\u003cli\u003eFrequency Response - 0.003 dB at 10 Hz, -0.001 dB at 20 kHz\u003c\/li\u003e\n\u003cli\u003e- 3 dB Bandwidth exceeds 0.1 Hz to 500 kHz\u003c\/li\u003e\n\u003cli\u003eOutput Impedance, near 0 Ohms\u003c\/li\u003e\n\u003cli\u003eOutput Noise \u0026lt; 2.45 uV at Unity Gain, 20-20 kHz\u003c\/li\u003e\n\u003cli\u003eMaximum Output Power, 6 Watts into 16 Ohms\u003c\/li\u003e\n\u003cli\u003eMaximum Output Current, 1.5 A\u003c\/li\u003e\n\u003cli\u003eMaximum Output Voltage, 11.5 Vrms into 300 Ohms\u003c\/li\u003e\n\u003cli\u003eCrosstalk \u0026lt; -133 dB @ 1 kHz, -115 dB @ 10 kHz (XLR4)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBALANCED LINE OUTPUTS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHD \u0026lt; -125 dB (0.00006%)\u003c\/li\u003e\n\u003cli\u003eSNR \u0026gt; 135 dB, unweighted, 20-20 kHz\u003c\/li\u003e\n\u003cli\u003eSNR \u0026gt; 137 dB, A-weighted\u003c\/li\u003e\n\u003cli\u003eFrequency Response - 0.003 dB at 10 Hz, -0.001 dB at 20 kHz\u003c\/li\u003e\n\u003cli\u003e- 3 dB Bandwidth exceeds 0.1 Hz to 500 kHz\u003c\/li\u003e\n\u003cli\u003eOutput Impedance 60 Ohms\u003c\/li\u003e\n\u003cli\u003eOutput Noise \u0026lt; 1.9 uV at Unity Gain, 20-20 kHz\u003c\/li\u003e\n\u003cli\u003eMaximum Input and Output Voltage, 20 Vrms (+28 dBu)\u003c\/li\u003e\n\u003cli\u003eCrosstalk \u0026lt; -133 dB @ 1 kHz, -116 dB @ 10 kHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDIMENSIONS:\u003c\/h3\u003e\n\u003cp\u003e8.65\" W x 3.88\" H x 8.33\" D - Including Feet\u003c\/p\u003e\n\u003cp\u003e8.65\" W x 3.47\" H x 8.33\" D - Excluding Feet\u003c\/p\u003e\n\u003ch3\u003eWEIGHT:\u003c\/h3\u003e\n\u003cp\u003e8.0 lbs., 12 lbs. shipping\u003c\/p\u003e\n\u003ch3\u003ePOWER:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e18W Typical Input Power\u003c\/li\u003e\n\u003cli\u003e35W Maximum Input power\u003c\/li\u003e\n\u003cli\u003e0.33 W Standby Power (when off)\u003c\/li\u003e\n\u003cli\u003eInternal Universal Power Supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"The Music Room","offers":[{"title":"Black \/ Rackmount \/ No Remote","offer_id":51267882123545,"sku":"2218newBMRK-BL-NR-RA","price":3699.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Rackmount \/ With Remote","offer_id":51267882156313,"sku":"2218newBMRK-BL-WR-RA","price":3799.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Standard \/ No Remote","offer_id":51267882189081,"sku":"2218newBMRK-BL-NR-ST","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Standard \/ With Remote","offer_id":51267882221849,"sku":"2218newBMRK-BL-WR-ST","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Rackmount \/ No Remote","offer_id":51267882254617,"sku":"2218newBMRK-SI-NR-RA","price":3699.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Rackmount \/ With Remote","offer_id":51267882287385,"sku":"2218newBMRK-SI-WR-RA","price":3799.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Standard \/ No Remote","offer_id":51267882320153,"sku":"2218newBMRK-SI-NR-ST","price":3499.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Standard \/ With Remote","offer_id":51267882352921,"sku":"2218newBMRK-SI-WR-ST","price":3599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Benchmark_HPA4_Headphone_Amplifier_Preamplifier_1.jpg?v=1768992783"},{"product_id":"benchmark-la4-stereo-line-preamplifier","title":"Benchmark LA4 Stereo Line Preamplifier","description":"\u003ch2 class=\"product_name\"\u003eBENCHMARK LA4 LINE AMPLIFIER\u003c\/h2\u003e\n\u003ch2\u003eTHE ULTIMATE LINE AMPLIFIER\u003c\/h2\u003e\n\u003cp\u003eThe LA4 is identical to the HPA4 except that it eliminates the headphone outputs. The LA4 is well-suited to customers who do not need the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003eThe LA4 is a line-level preamplifier that is designed to sit between a reference-quality D\/A converter and a reference-quality power amplifier. This is not an easy task. Most hi-fi preamplifiers introduce significant noise and distortion due to the necessity to provide volume control and input switching. To solve this problem, the LA4 is completely relay controlled and features analog amplifiers with vanishingly low distortion. It features relay gain control, relay input selection, and relay muting. The entire system incorporates the finest gold-contact relays available. The gain control has 256 steps in 0.5 dB increments. It also features a relay-controlled balance adjustment. Relay closures are precisely timed to deliver silky-smooth volume changes. No other relay gain control offers this level of precision or performance. The LA4 includes 2 independent 256-step attenuators: one for the left channel and one for the right channel. To make this all happen, the LA4 includes a total of 40 precision relays that switch high-precision metal-film resistors.\u003c\/p\u003e\n\u003ch2\u003e100% ANALOG SIGNAL PATH\u003c\/h2\u003e\n\u003cp\u003eThe LA4 is 100% analog. It is designed to be driven from external D\/A converters and external line-level analog sources. The LA4 is designed to drive any professional or hi-fi power amplifier. The LA4 provides the ultimate analog signal path between inputs and outputs. The LA4 eclipses the performance of typical high-end hi-fi preamplifiers by achieving much lower noise and distortion.\u003c\/p\u003e\n\u003ch2\u003eSYSTEM OPTIMIZATION\u003c\/h2\u003e\n\u003cp\u003eAt any volume setting, the relay-controlled gain stage provides an optimized attenuator to match the upstream analog source to the downstream power amplifier. This optimization of the gain staging delivers the best possible system SNR for each volume setting. The LA4 will match high-output D\/A converters to low-input power amplifiers and vice-versa. It will also provide an optimized interface to and from balanced and unbalanced devices. In addition, it will match high-level professional balanced interfaces to low-level hi-fi balanced interfaces (in either direction).\u003c\/p\u003e\n\u003ch2\u003eSPEED AND PRECISION\u003c\/h2\u003e\n\u003cp\u003eThe bandwidth of the LA4 extends from 0.01 Hz to over 500 kHz. This means that the LA4 delivers very precise amplitude and phase accuracy over the entire audio bandwidth. Wave shapes are accurately reproduced, and the entire spectrum is delivered with precise timing. The LA4 will deliver musical overtones with life-like accuracy. This means that musical instruments are rendered without changing their sonic character.\u003c\/p\u003e\n\u003ch2\u003eBALANCED AND UNBALANCED I\/O\u003c\/h2\u003e\n\u003cp\u003eThe LA4 features two balanced stereo inputs and two unbalanced stereo inputs. The line amplifier provides one balanced stereo output, one balanced mono sum, and one unbalanced stereo output.\u003c\/p\u003e\n\u003ch2\u003eSYSTEM INTEGRATION\u003c\/h2\u003e\n\u003cp\u003eThe LA4 includes IR remote control and can be operated using the optional Benchmark remote. The LA4 is designed to work with the Benchmark DAC2 and DAC3 converters but may be driven from any high-end D\/A converter. When paired with a Benchmark DAC, a single remote control will operate both units.\u003cbr\u003e\u003cbr\u003eThe LA4 (line amplifier) or HPA4 (line amplifier + headphone amplifier) are the perfect complement to the Benchmark AHB2. These may be the only preamplifiers or line amplifiers that exceeds the signal to noise ratio of the ultra-quiet AHB2. This means that the LA4 will extract the full performance of the AHB2. In contrast, other preamplifiers limit the system noise performance because they cannot match the SNR performance of the AHB2. The LA4 and HPA4 are the only line amplifier\/preamplifiers that we recommend inserting between a DAC and the AHB2. The LA4 or HPA4 can be inserted between a Benchmark DAC3 and AHB2 without degrading the system noise performance. With the LA4 or HPA4 inserted, the DAC3's 32-bit digital gain control is replaced by a more-resolving fully-analog relay gain control.\u003cbr\u003e\u003cbr\u003eTwo bidirectional 12V trigger ports can be used to link the LA4 with external D\/A converters and power amplifiers. The trigger signal controls the power-up and power-down sequencing of the entire audio system. The trigger ports are compatible with most industry-standard trigger input or output ports, but can communicate bidirectionally with other Benchmark products.\u003c\/p\u003e\n\u003ch2\u003eTOUCH SCREEN\u003c\/h2\u003e\n\u003cp\u003eThe touch screen provides easy access to advanced features such as balance control, input level offsets, input names, screen dimming, remote control, and function locking. Help screens explain the special functions.\u003c\/p\u003e\n\u003ch2\u003eROTARY ENCODER\u003c\/h2\u003e\n\u003cp\u003eThe volume control knob features a high-quality optical encoder that is rated for heavy use. An acceleration feature makes it easy to move through the 256 volume steps while maintaining 0.5 dB\/step resolution. A press of the control knob will wake turn on or brighten the screen if you are using the screen sleep or auto-dim functions.\u003c\/p\u003e\n\u003ch2\u003eCONVENIENCE FEATURES\u003c\/h2\u003e\n\u003cp\u003eThe LA4 includes an on-screen mute button for the line outputs. Outputs can also be muted with the volume knob or with the optional remote control.\u003cbr\u003e\u003cbr\u003eThe LA4 includes an on-screen -20 dB \"audio dim\" button that instantly reduces the level by 20 dB. This function provides a temporary volume reduction and makes it easy return to the previous listening level. This control makes it easy to transition between a normal listening level and a background level. The -20 dB \"dim\" function is also accessible from the optional remote control.\u003cbr\u003e\u003cbr\u003eInputs may be renamed and unused inputs may be disabled. Input levels can be trimmed to provide input-to-input level matching.\u003cbr\u003e\u003cbr\u003eScreen brightness is adjustable and timers can be set to dim or shut off the display. The screen can be locked to prevent access to advanced features.\u003c\/p\u003e\n\u003ch2\u003eCASEWORK\u003c\/h2\u003e\n\u003cp\u003eThe LA4 is available with a black or silver faceplate and is designed to match the Benchmark AHB2 power amplifier. It occupies the same footprint as the Benchmark DAC1, DAC2 and DAC3 converters. The case features a milled faceplate and milled sides. Top, bottom, and rear panels are made from thick aluminum and feature a brushed texture. The LA4 is built to last and will be a fine addition to your listening space.\u003c\/p\u003e\n\u003ch2\u003eFEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBenchmark Low-Noise Line Amplifier\u003c\/li\u003e\n\u003cli\u003e256-Step Fully-Balanced Relay Gain Control, 0.5 dB Steps\u003c\/li\u003e\n\u003cli\u003ePrecision Timed Relay Closures\u003c\/li\u003e\n\u003cli\u003ePrecision Metal Film Resistors\u003c\/li\u003e\n\u003cli\u003eGold-Contact Relays\u003c\/li\u003e\n\u003cli\u003eBalanced and Unbalanced I\/O\u003c\/li\u003e\n\u003cli\u003e0.01 Hz to 500 kHz\u003c\/li\u003e\n\u003cli\u003eSNR \u0026gt; 135 dB\u003c\/li\u003e\n\u003cli\u003eTHD \u0026lt; 125 dB (0.00006%)\u003c\/li\u003e\n\u003cli\u003eTouch Screen Control\u003c\/li\u003e\n\u003cli\u003eIR Remote Control (optional)\u003c\/li\u003e\n\u003cli\u003e2 Balanced Stereo Line Inputs\u003c\/li\u003e\n\u003cli\u003e2 Unbalanced Stereo Line Inputs\u003c\/li\u003e\n\u003cli\u003e1 Balanced Stereo Line Output\u003c\/li\u003e\n\u003cli\u003e1 Unbalanced Stereo Line Output\u003c\/li\u003e\n\u003cli\u003e1 Balanced Mono Sum Output\u003c\/li\u003e\n\u003cli\u003e2 Bidirectional 12V Trigger Ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSPECIFICATIONS\u003c\/h2\u003e\n\u003cp\u003e(using balanced inputs at +24 dBu)\u003c\/p\u003e\n\u003ch3\u003eBALANCED LINE OUTPUTS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTHD \u0026lt; -125 dB (0.00006%)\u003c\/li\u003e\n\u003cli\u003eSNR \u0026gt; 135 dB, unweighted, 20-20 kHz\u003c\/li\u003e\n\u003cli\u003eSNR \u0026gt; 137 dB, A-weighted\u003c\/li\u003e\n\u003cli\u003eFrequency Response - 0.003 dB at 10 Hz, -0.001 dB at 20 kHz\u003c\/li\u003e\n\u003cli\u003e- 3 dB Bandwidth exceeds 0.1 Hz to 500 kHz\u003c\/li\u003e\n\u003cli\u003eOutput Impedance 60 Ohms\u003c\/li\u003e\n\u003cli\u003eOutput Noise \u0026lt; 1.9 uV at Unity Gain, 20-20 kHz\u003c\/li\u003e\n\u003cli\u003eMaximum Input and Output Voltage, 20 Vrms (+28 dBu)\u003c\/li\u003e\n\u003cli\u003eCrosstalk \u0026lt; -133 dB @ 1 kHz, -116 dB @ 10 kHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDIMENSIONS:\u003c\/h3\u003e\n\u003cp\u003e8.65\" W x 3.88\" H x 8.33\" D - Including Feet\u003c\/p\u003e\n\u003cp\u003e8.65\" W x 3.47\" H x 8.33\" D - Excluding Feet\u003c\/p\u003e\n\u003ch3\u003eWEIGHT:\u003c\/h3\u003e\n\u003cp\u003e8.0 lbs., 12 lbs. shipping\u003c\/p\u003e\n\u003ch3\u003ePOWER:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e12W Typical Input Power\u003c\/li\u003e\n\u003cli\u003e17W Maximum Input power\u003c\/li\u003e\n\u003cli\u003e0.33 W Standby Power (when off)\u003c\/li\u003e\n\u003cli\u003eInternal Universal Power Supply\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Music Room","offers":[{"title":"Black \/ Rack Mount \/ WIthout Remote","offer_id":51267882516761,"sku":"2219newBMRK-BL-NR-RM","price":3150.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Rack Mount \/ With Remote","offer_id":51267882549529,"sku":"2219newBMRK-BL-WR-RM","price":3250.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Standard \/ WIthout Remote","offer_id":51267882582297,"sku":"2219newBMRK-BL-NR-ST","price":2950.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Standard \/ With Remote","offer_id":51267882615065,"sku":"2219newBMRK-BL-WR-ST","price":3050.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Rack Mount \/ WIthout Remote","offer_id":51267882647833,"sku":"2219newBMRK-SI-NR-RM","price":3150.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Rack Mount \/ With Remote","offer_id":51267882680601,"sku":"2219newBMRK-SI-WR-RM","price":3250.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Standard \/ WIthout Remote","offer_id":51267882713369,"sku":"2219newBMRK-SI-NR-ST","price":2950.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Standard \/ With Remote","offer_id":51267882746137,"sku":"2219newBMRK-SI-WR-ST","price":3050.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Benchmark_LA4_Stereo_Line_Preamplifier_1.jpg?v=1768992509"},{"product_id":"benchmark-dac3-hgc-dac","title":"Benchmark DAC3 HGC DAC","description":"\u003ch2 class=\"product_name\"\u003eBENCHMARK DAC3 HGC - DIGITAL TO ANALOG AUDIO CONVERTER\u003c\/h2\u003e\n\u003ch2\u003eA NEW REFERENCE - GOING BEYOND THE LEGENDARY DAC1 AND DAC2\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 is Benchmark's newest 2-channel D\/A converter featuring the new ESS Technologies ES9028PRO converter chip. The DAC3 converter has lower THD and THD+N noise than Benchmark's DAC2 converter.\u003c\/p\u003e\n\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003ch2\u003eREFERENCE PERFORMANCE\u003c\/h2\u003e\n\u003cp\u003eThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003ch2\u003eDAC3 VS. DAC2\u003c\/h2\u003e\n\u003cp\u003eThe DAC3builds upon Benchmark’s highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActive 2nd Harmonic Compensation\u003c\/li\u003e\n\u003cli\u003eActive 3rd Harmonic Compensation\u003c\/li\u003e\n\u003cli\u003eLower THD+N\u003c\/li\u003e\n\u003cli\u003eLower passband ripple\u003c\/li\u003e\n\u003cli\u003eImproved frequency response\u003c\/li\u003e\n\u003cli\u003eFaster PLL lock times\u003c\/li\u003e\n\u003cli\u003eFaster switching between input signals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDAC3 VS. DAC1\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 and DAC2 added these features that were not found on the DAC1:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAsynchronous 192kHz USB Audio 2.0\u003c\/li\u003e\n\u003cli\u003e32-bit D\/A conversion system\u003c\/li\u003e\n\u003cli\u003eWord Length Display\u003c\/li\u003e\n\u003cli\u003eSample Rate Display\u003c\/li\u003e\n\u003cli\u003ePolarity Control\u003c\/li\u003e\n\u003cli\u003eDirect DSD D\/A Conversion\u003c\/li\u003e\n\u003cli\u003e-20 dB DIM\u003c\/li\u003e\n\u003cli\u003eBi-Directional 12V Trigger\u003c\/li\u003e\n\u003cli\u003ePower Switch with Auto-On Function\u003c\/li\u003e\n\u003cli\u003eHome Theater Bypass\u003c\/li\u003e\n\u003cli\u003eDigital Pass-Through\u003c\/li\u003e\n\u003cli\u003eHigh-Headroom DSP\u003c\/li\u003e\n\u003cli\u003eDual-Domain Hybrid Gain Control\u003c\/li\u003e\n\u003cli\u003eAdditional I\/O\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNATIVE DSD CONVERSION\u003c\/h2\u003e\n\u003cp\u003eAll digital inputs on the DAC3 support native 192 kHz PCM or DSD64 conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\u003c\/p\u003e\n\u003ch2\u003eDIRECT CONNECTIVITY TO POWER AMPLIFIERS\u003c\/h2\u003e\n\u003cp\u003eBenchmark DAC1, DAC2, and DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasized. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.\u003c\/p\u003e\n\u003ch2\u003eSONICALLY-NEUTRAL STUDIO MONITORING\u003c\/h2\u003e\n\u003cp\u003eAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003ch2\u003eSTEP INTO THE STUDIO\u003c\/h2\u003e\n\u003cp\u003eWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\u003c\/p\u003e\n\u003ch2\u003eSIT IN THE PERFORMANCE SPACE\u003c\/h2\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music. \u003c\/p\u003e\n\u003ch2\u003eDESIGNED, ASSEMBLED, AND TESTED IN THE USA\u003c\/h2\u003e\n\u003cp\u003eThis Benchmark product was designed, assembled, and tested in the USA using USA and imported components. Most major components are made in USA.\u003c\/p\u003e\n\u003ch2\u003eDAC3 TECHNOLOGIES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHarmonic Compensation\u003c\/li\u003e\n\u003cli\u003eHybrid Gain Control\u003c\/li\u003e\n\u003cli\u003eUltraLock3™ Jitter Attenuation System\u003c\/li\u003e\n\u003cli\u003eHigh-Headroom DSP\u003c\/li\u003e\n\u003cli\u003eMulti-Mode Asynchronous USB Audio System\u003c\/li\u003e\n\u003cli\u003eQuad 32-bit balanced D\/A Conversion System\u003c\/li\u003e\n\u003cli\u003eDistributed Power Regulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHARMONIC COMPENSATION\u003c\/h3\u003e\n\u003cp\u003eThe ES9028PRO has two distortion compensation systems that independently remove most of the 2nd and 3rd harmonic distortion in the D\/A converter. Benchmark's ultra-clean analog output stages allow these systems to be fully leveraged in the DAC3. To the best of our knowledge, no other D\/A converter has lower THD than the Benchmark DAC3.\u003c\/p\u003e\n\u003ch3\u003eHYBRID GAIN CONTROL\u003c\/h3\u003e\n\u003cp\u003e\"HGC\" is Benchmark's unique Hybrid Gain Control system. The DAC3 combines active analog gain control, passive low-impedance attenuators, a 32-bit digital gain control, and a servo-driven volume control. All inputs are controlled by the rotary volume control. This volume control moves in response to commands from the remote control. Analog inputs are never converted to digital, and digital inputs never pass through an analog potentiometer. Digital inputs are precisely controlled in the 32-bit DSP system. The DSP system preserves precise L\/R balance, and precise stereo imaging, while avoiding any source of noise and distortion.\u003c\/p\u003e\n\u003cp\u003eBenchmark's unique passive output attenuators provide distortion-free gain reduction without reducing the dynamic range of the converter. The attenuators optimize the gain staging between the DAC3 and the power amplifier. This optimization is absolutely essential for maximizing the dynamic range of the entire playback system. Much of the success of the DAC1 and DAC2 converters can be attributed to the passive output attenuators. Musical details can be obscured by system noise whenever a preamplifier and power amplifier are improperly matched. The\" HGC \" system will make full use of your power amplifier's dynamic range. Experience new details in your favorite recordings.\u003c\/p\u003e\n\u003ch3\u003eULTRALOCK3™ JITTER ATTENUATION SYSTEM\u003c\/h3\u003e\n\u003cp\u003eUltraLock3™ is an improved version of the UltraLock2™ system used in the DAC2 product family. UltraLock3™ locks with precise phase accuracy in only 6 ms. In contrast, the UltraLock2™ system required 400 ms. Both UltraLock™ systems provide virtually perfect jitter attenuation, but the lightning-fast lock time of the new UltraLock3™ will be appreciated by many of our users.\u003c\/p\u003e\n\u003cp\u003eDSP processing is 32-bits, DSP headroom is 3 dB, sample rate is 211 kHz, and jitter-induced distortion and noise is at least 140 dB below the level of the music - well below the threshold of hearing. Benchmark's UltraLock3™ system eliminates all audible jitter artifacts.\u003c\/p\u003e\n\u003ch3\u003eHIGH HEADROOM DSP - WITH 3.5 DB \"EXCESS\" DIGITAL HEADROOM\u003c\/h3\u003e\n\u003cp\u003eAll of the digital processing in the DAC3 is designed to handle signals as high as +3.5 dBFS. Most digital systems clip signals that exceed 0 dBFS. The 0 dBFS limitation seems reasonable, as 0 dBFS is the highest sinusoidal signal level that can be represented in a digital system. However, a detailed investigation of the mathematics of PCM digital systems will reveal that inter-sample peaks may reach +3.01 dBFS while individual samples never exceed 0 dBFS. These inter-sample peaks are common in commercial releases, and are of no consequence in a PCM system until they reach an interpolation process. But, for a variety of reasons, virtually all audio D\/A converters use an interpolation process. The interpolation process is absolutely necessary to achieve 24-bit state-of-the art conversion performance. Unfortunately, inter-sample peaks exceeding 0 dBFS cause clipping in most interpolators. This clipping produces distortion products that are non-harmonic and non-musical . We believe these broadband distortion products often add a harshness or false high-frequency sparkle to digital reproduction. The DAC3 avoids these problems by maintaining at least 3.5 dB of headroom in the entire conversion system. We believe this added headroom is a groundbreaking improvement.\u003c\/p\u003e\n\u003ch3\u003eMULTI-MODE ASYNCHRONOUS USB SYSTEM\u003c\/h3\u003e\n\u003cp\u003eBenchmark's USB system supports USB Audio 2.0, DSD, and USB Audio 1.1. It is frequency agile, and will follow sample rate changes initiated by the computer and\/or the media playback software. In all modes the USB communications are asynchronous in order to eliminate unnecessary sources of jitter.\u003cbr\u003e\u003cbr\u003eThe DAC3 has a low-jitter master clock which controls the transfer of audio data from the computer to the USB sub-system. The computer asynchronously transfers audio data to a buffer in the DAC3. The contents of the buffer are then asynchronously transferred to the D\/A conversion subsystem. This second asynchronous transfer eliminates any traces of jitter that accumulate as the data is transferred between the USB and conversion subsystems. No traces of jitter-induced distortion are measurable to our measurement limits (better than -150 dBFS). This truly represents the state-of-the art. Enjoy the convenience of computer playback without compromise. The Asynchronous USB system supports USB Audio 2.0 for high-resolution 192kHz, and DSD playback. No drivers are required for MAC operating systems. An easy-to-install driver adds 192 kHz and DSD capabilities to Windows operating systems.\u003cbr\u003e\u003cbr\u003eAn asynchronous, driverless USB Audio 1.1 mode supports sample rates up to 96 kHz. This USB mode can be selected from the front panel or from the remote control. The driverless USB Audio 1.1 mode allows quick plug-and-play connections to Windows, MAC, iOS, and Linux operating systems without installing drivers. Just plug in the USB, and the DAC3 becomes an available audio device.\u003cbr\u003e\u003cbr\u003eThe USB subsystem remains active when the DAC3 is powered down. This prevents interruptions to the computer playback operations and eliminates the need to reconfigure the computer every time the converter is turned on.\u003c\/p\u003e\n\u003ch3\u003eQUAD 32-BIT BALANCED CONVERSION SYSTEM\u003c\/h3\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters deliver audio to Benchmark's low-impedance current to voltage converters. The 4:1 redundancy reduces noise and distortion to levels that set new benchmarks. The conversion system at the core of the DAC3 is as good as it gets. The analog circuits that follow the D\/A converter are carefully designed. Benchmark has leveraged its long history of building high-end analog audio equipment, in order to create an outstanding output stage.\u003c\/p\u003e\n\u003cp\u003eThe conversion system in the DAC3 achieves a 6 dB signal to noise improvement through the use of 4:1 summing. The ES9028PRO D\/A is an 8-channel 32-bit converter. In the DAC3, four channels are summed in the analog domain to form each of the two output channels.\u003c\/p\u003e\n\u003cp\u003eThe 4:1 summing also improves the THD. The non-linearities in individual conversion channels are averaged across the four summed channels and incoherent non-linearities are attenuated by 6 dB.\u003c\/p\u003e\n\u003ch3\u003eDIAGNOSTIC TOOLS - SAMPLE-RATE AND WORD-LENGTH INDICATORS\u003c\/h3\u003e\n\u003cp\u003eEver wonder why that 192 kHz 24-bit download on your computer just doesn't sound right? Your media player may be down-sampling to 44.1 kHz and\/or truncating to 16-bits. Many computers and media players apply poor-quality sample rate conversion and truncation. Fortunately these problems can be eliminated with the selection a good frequency-agile media player. The sample-rate and word-length displays on the DAC3 confirm the proper operation of your media player.\u003c\/p\u003e\n\u003ch2\u003ePOLARITY SWITCH\u003c\/h2\u003e\n\u003cp\u003eYou may encounter recordings with inverted polarity. The DAC3 HGC and DAC3 L include a polarity switch to correct the problem.\u003c\/p\u003e\n\u003ch2\u003eHOME THEATER BYPASS\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 can be integrated into a home theater system. Typically the DAC3 drives the left and right power amplifiers, and an analog feed from the home theater system is connected to either of the analog inputs on the DAC3. A programmable Home Theater Bypass function sets the pass-through gain to unity when the surround system is active. The DAC3 HGC and DAC3 L include an indicator light that is illuminated when bypass is active.\u003c\/p\u003e\n\u003ch2\u003eDIGITAL PASS THROUGH\u003c\/h2\u003e\n\u003cp\u003eThe second coaxial input on the DAC3 can be reconfigured as a digital output. In output mode, any selected digital input (including USB) will pass through to the coaxial output. The digital pass through is bit-transparent and even supports DSD (DoP 1.1). Dolby digital and DTS formats can also be passed through to a surround processor.\u003c\/p\u003e\n\u003ch2\u003eBI-DIRECTIONAL 12 VOLT TRIGGER\u003c\/h2\u003e\n\u003cp\u003eBenchmark re-invents the 12 volt trigger. The trigger connection on the DAC2 can be used as an input, an output, or both. It is compatible with any common 12 volt trigger input or output. The trigger can be used to turn a power amplifier on or off automatically. The DAC3 will also respond to a 12 volt trigger to follow the actions of another audio component.\u003c\/p\u003e\n\u003ch2\u003ePOWER SWITCH\u003c\/h2\u003e\n\u003cp\u003eThe power switch can place the DAC3 in standby, or full shut down. In full shut down, the unit will still respond to the trigger input and the IR remote control. Power consumption is less than 0.5 W in full shut down.\u003c\/p\u003e\n\u003ch2\u003eLOW POWER CONSUMPTION\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 uses high-efficiency low noise power supplies and may be operated from any standard international voltage without adjustment. Power consumption is 12 W typical.\u003c\/p\u003e\n\u003ch2\u003eDISTRIBUTED POWER REGULATION\u003c\/h2\u003e\n\u003cp\u003eTo achieve the lowest possible noise, the DAC3 uses distributed power supply regulation. Each critical subsystem has at least one dedicated low-noise voltage regulator.\u003c\/p\u003e\n\u003ch2\u003eHPA2™ HEADPHONE POWER AMPLIFIER\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 features the HPA2™ - Benchmark's signature high-current, 0-Ohm headphone power amplifier. The HPA2™ is arguably the ultimate reference headphone power amplifier. It will deliver the full rated performance of the DAC3 to the headphones. The DAC3 has two 1\/4\" headphone jacks on the front panel. The performance of the HPA2™ remains consistent even when two headphones are being driven simultaneously.\u003c\/p\u003e\n\u003ctable width=\"667\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003eAUDIO PERFORMANCE\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003cp\u003eFs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu (unless noted)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSNR – A-Weighted, 0 dBFS = +27 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e128 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSNR – Unweighted, 0 dBFS = +27 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e126 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at 0 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-113 dBFS, -113 dB, 0.00022%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at -1 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-114 dBFS, -113 dB, 0.00022%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at –3 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-119 dBFS, -116 dB, 0.00016%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 20 to 20 kHz test tone at –3 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-113 dBFS, -110 dB, 0.00032%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency Response at Fs=192 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+0 dB, -0.015 dB (20 to 20 kHz)\u003c\/p\u003e\n\u003cp\u003e-0.015 dB at 10 Hz\u003c\/p\u003e\n\u003cp\u003e-0.005 dB at 20 kHz\u003c\/p\u003e\n\u003cp\u003e-0.031 dB at 40 kHz\u003c\/p\u003e\n\u003cp\u003e-0.15 dB at 80 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency Response at Fs=48 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+0 dB, -0.015 dB (20 to 20 kHz)\u003c\/p\u003e\n\u003cp\u003e-0.015 dB at 10 Hz\u003c\/p\u003e\n\u003cp\u003e-0.005 dB at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eCrosstalk\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-137 dB at 20 Hz\u003c\/p\u003e\n\u003cp\u003e-130 dB at 1 kHz\u003c\/p\u003e\n\u003cp\u003e-116 dB at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Jitter Induced Sidebands (10 kHz 0 dBFS test tone, 12.75 UI sinusoidal jitter at 1 kHz)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -144 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Spurious Tones with 0 dBFS test signal\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -138 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Idle Tones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -147 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of AC line related Hum \u0026amp; Noise\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -133 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInter-channel Differential Phase (Stereo Pair – any sample rate)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+\/- 0.25 degrees at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInter-channel Differential Phase (Between DAC3 Units Fs\u0026lt;110 kHz) Any sample rate.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+\/- 0.25 degrees at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Lock Time after Fs change\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e6 ms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSoft Mute Ramp Up\/Down Time\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.6 ms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Receive Error\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Lock Error\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Idle Channel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eNo\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003e50\/15 us De-Emphasis Enable\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eAutomatic in Consumer Mode\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDe-Emphasis Method\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eDigital IIR\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDe-Emphasis Supported at\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eFs = 32, 44.1, 48 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992221\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655464\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685340\"\u003e\u003c\/a\u003eGROUP DELAY (LATENCY)\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDelay – Digital Input to Analog Output (function of sample rate)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e1.36 ms at 44.1 kHz\u003c\/p\u003e\n\u003cp\u003e1.27 ms at 48 kHz\u003c\/p\u003e\n\u003cp\u003e0.90 ms at 88.2 kHz\u003c\/p\u003e\n\u003cp\u003e0.82 ms at 96 kHz\u003c\/p\u003e\n\u003cp\u003e0.51 ms at 176.4 kHz\u003c\/p\u003e\n\u003cp\u003e0.47 ms at 192 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992222\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655465\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685342\"\u003e\u003c\/a\u003eDIGITAL AUDIO INPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Digital Inputs (switch selected)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e5 (1 USB, 2 Optical, 2 Coaxial)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Channels\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInput Sample Frequency Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e28 to 210 kHz (Coaxial Inputs)\u003c\/p\u003e\n\u003cp\u003e28 to 96 kHz (Optical Inputs)\u003c\/p\u003e\n\u003cp\u003e44.1, 48, 88.2, 96, 176.4, 192 kHz (USB Input)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Input Word Length\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e24 bits\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDigital Input Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e75 Ohms (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDC Blocking Capacitors on Digital Inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTransient and Over-Voltage Protection on Digital Inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMinimum Digital Input Level\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e250 mVpp (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003e\u003ca name=\"_Toc405992223\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655466\"\u003e\u003c\/a\u003eJitter Tolerance\u003c\/p\u003e\n\u003cp\u003e(With no Measurable Change in Performance)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026gt;12.75 UI sine, 100 Hz to 3 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 20 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 40 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 80 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 90 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;0.25 UI sine above 160 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eJitter Attenuation Method\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eBenchmark UltraLock3™ - all inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992224\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655467\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685343\"\u003e\u003c\/a\u003eBALANCED ANALOG OUTPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Balanced Analog Outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Connector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eGold-Pin Neutrik™ male XLR\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e60 Ohms (Attenuator off)\u003c\/p\u003e\n\u003cp\u003e425 Ohms (Attenuator = 10 dB)\u003c\/p\u003e\n\u003cp\u003e135 Ohms (Attenuator = 20 dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eAnalog Output Clip Point\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+30 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFactory Set Bypass Level (at 0 dBFS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+24 dBu (Attenuator = 0 dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Range (at 0 dBFS) In ‘Variable’ Mode\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eOff to +27.5 dBu (Attenuator off)\u003c\/p\u003e\n\u003cp\u003eOff to +17.5 dBu (Attenuator = 10 dB)\u003c\/p\u003e\n\u003cp\u003eOff to +7.5 dBu (Attenuator = 20 dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Variation with Sample Rate (44.1 kHz vs. 96 kHz)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; +\/- 0.006 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992225\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655468\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685344\"\u003e\u003c\/a\u003eUNBALANCED ANALOG OUTPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Unbalanced Analog Outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e4\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Connector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eRCA\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e30 Ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eAnalog Output Clip Point\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+13.5 dBu (3.7 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFactory Set Home Theater Bypass Output Level (at 0 dBFS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+8.2 dBu (2 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Range (with 0 dBFS digital input)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eOff to +11.7 dBu (3 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Variation with Sample Rate\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; +\/- 0.006 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992226\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655469\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685345\"\u003e\u003c\/a\u003eHPA2\u003csup\u003eTM\u003c\/sup\u003e HEADPHONE OUTPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Headphone Outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Connectors\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e¼” TRS with switch on left-hand jack\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; 0.11 Ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Control\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eStereo Control on Front Panel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Range (at 0 dBFS) into 60-Ohm Load\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eOff to +21.5 dBu (9.2 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003eOutput Power\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e1.25 W into 30 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Output Current\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e250 mA\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOverload Protection (independent per channel)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eCurrent limited at 300 mA, Thermal\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eBandwidth\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026gt; 500 kHz, -0.35 dB at 200 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N at 20 mW\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-108 dB (0.0004%) into 300 Ohms, -100 dB (0.0010%) into 30 Ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992227\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655470\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685346\"\u003e\u003c\/a\u003eSTATUS DISPLAY\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"397\"\u003e\n\u003cp\u003eIndicators - Type and Location\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"270\"\u003e\n\u003cp\u003e16 LED’s on Front Panel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"397\"\u003e\n\u003cp\u003eSelection\/Status Indication\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"270\"\u003e\n\u003cp\u003e1 – Dim\/Mute\u003c\/p\u003e\n\u003cp\u003e1 - Polarity\u003cbr\u003e6 – Input\u003cbr\u003e2 – Bypass\/Calibrated Output\u003cbr\u003e2 – Word length\u003cbr\u003e4 – Sample Rate\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992228\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655471\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685347\"\u003e\u003c\/a\u003eAC POWER REQUIREMENTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNominal Input Operating Voltage Range (VAC RMS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e100 – 240V\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e50-60 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003ePower\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; 0.5 Watts Idle\u003cbr\u003e12 Watts Typical Program\u003cbr\u003e15 Watts Maximum\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFuses\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e5 x 20 mm (2 required)\u003cbr\u003e0.5 A 250 V Slo-Blo\u003csup\u003e®\u003c\/sup\u003e Type\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMin\/Max Operating range (VAC RMS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e90 – 260 VAC\u003cbr\u003e47 – 63 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003eDIMENSIONS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eForm Factor\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e½ Rack Wide, 1 RU High\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDepth behind front panel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e8.5” (216 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOverall depth including connectors but without power cord\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.33” (237 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eWidth\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.5” (249 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eHeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e1.725” (44.5 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992230\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655473\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685349\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc111628075\"\u003e\u003c\/a\u003eWEIGHT\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDAC3 only\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e3 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDAC3 with remote control, power cord, extra fuses, and manual\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e4 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eShipping weight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e7 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eIMPORTANT FEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample Rate Display\u003c\/li\u003e\n\u003cli\u003eWord Length Display\u003c\/li\u003e\n\u003cli\u003e5 Digital Inputs\u003c\/li\u003e\n\u003cli\u003e2 Stereo Analog Inputs (2 RCA)\u003c\/li\u003e\n\u003cli\u003e3 Stereo Analog Outputs (2 RCA, 1 XLR)\u003c\/li\u003e\n\u003cli\u003eDigital Pass Through\u003c\/li\u003e\n\u003cli\u003eNative DSD Conversion\u003c\/li\u003e\n\u003cli\u003ePolarity Switch\u003c\/li\u003e\n\u003cli\u003eAsynchronous USB 2.0\u003c\/li\u003e\n\u003cli\u003eDriverless Asynchronous USB 1.1\u003c\/li\u003e\n\u003cli\u003eHome Theater Bypass\u003c\/li\u003e\n\u003cli\u003eBi-Directional 12 Volt Trigger\u003c\/li\u003e\n\u003cli\u003ePower Switch\u003c\/li\u003e\n\u003cli\u003eLow Power Consumption\u003c\/li\u003e\n\u003cli\u003eES9028PRO Converter\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Music Room","offers":[{"title":"Black \/ Rack Mount \/ With Remote","offer_id":51267882844441,"sku":"2220newBMRK-BL-WR-RM","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Standard \/ With Remote","offer_id":51267882877209,"sku":"2220newBMRK-BL-WR-ST","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Rack Mount \/ With Remote","offer_id":51267882909977,"sku":"2220newBMRK-SI-WR-RM","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Standard \/ With Remote","offer_id":51267882942745,"sku":"2220newBMRK-SI-WR-ST","price":2399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Benchmark_DAC3_HGC_DAC_1.jpg?v=1768992165"},{"product_id":"benchmark-dac3-l-dac","title":"Benchmark DAC3 L DAC","description":"\u003ch2 class=\"product_name\"\u003eBENCHMARK DAC3 L - DIGITAL TO ANALOG AUDIO CONVERTER\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 is Benchmark's newest 2-channel D\/A converter featuring the new ESS Technologies ES9028PRO converter chip. The DAC3 converter has lower THD and THD+N noise than Benchmark's DAC2 converter.\u003c\/p\u003e\n\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003ch2\u003eREFERENCE PERFORMANCE\u003c\/h2\u003e\n\u003cp\u003eThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc464630756\"\u003e\u003c\/a\u003eDAC3 VS. DAC2\u003c\/h2\u003e\n\u003cp\u003eThe DAC3builds upon Benchmark’s highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActive 2nd Harmonic Compensation\u003c\/li\u003e\n\u003cli\u003eActive 3rd Harmonic Compensation\u003c\/li\u003e\n\u003cli\u003eLower THD+N\u003c\/li\u003e\n\u003cli\u003eLower passband ripple\u003c\/li\u003e\n\u003cli\u003eImproved frequency response\u003c\/li\u003e\n\u003cli\u003eFaster PLL lock times\u003c\/li\u003e\n\u003cli\u003eFaster switching between input signals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc464630757\"\u003e\u003c\/a\u003eDAC3 VS. DAC1\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 and DAC2 added these features that were not found on the DAC1:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAsynchronous 192kHz USB Audio 2.0\u003c\/li\u003e\n\u003cli\u003e32-bit D\/A conversion system\u003c\/li\u003e\n\u003cli\u003eWord Length Display\u003c\/li\u003e\n\u003cli\u003eSample Rate Display\u003c\/li\u003e\n\u003cli\u003ePolarity Control\u003c\/li\u003e\n\u003cli\u003eDirect DSD D\/A Conversion\u003c\/li\u003e\n\u003cli\u003e-20 dB DIM\u003c\/li\u003e\n\u003cli\u003eBi-Directional 12V Trigger\u003c\/li\u003e\n\u003cli\u003ePower Switch with Auto-On Function\u003c\/li\u003e\n\u003cli\u003eHome Theater Bypass\u003c\/li\u003e\n\u003cli\u003eDigital Pass-Through\u003c\/li\u003e\n\u003cli\u003eHigh-Headroom DSP\u003c\/li\u003e\n\u003cli\u003eDual-Domain Hybrid Gain Control\u003c\/li\u003e\n\u003cli\u003eAdditional I\/O\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNATIVE DSD CONVERSION\u003c\/h2\u003e\n\u003cp\u003eAll digital inputs on the DAC3 support native 192 kHz PCM or DSD64 conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\u003c\/p\u003e\n\u003ch2\u003eDIRECT CONNECTIVITY TO POWER AMPLIFIERS\u003c\/h2\u003e\n\u003cp\u003eBenchmark DAC1, DAC2, and DAC3 converters are designed to directly drive power amplifiers and speakers. Benchmark converters feature adjustable low-impedance passive attenuators at the XLR outputs that can be used to optimize the interface to the power amplifier (or powered monitor). This unique Benchmark feature optimizes the gain staging between the DAC and the power amplifier. Proper gain staging cannot be overemphasized. When audio stages are properly matched, each component in the audio chain is able to operate at its optimum signal level, and the system performance is significantly improved.\u003c\/p\u003e\n\u003ch2\u003eSONICALLY-NEUTRAL STUDIO MONITORING\u003c\/h2\u003e\n\u003cp\u003eAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003ch2\u003eSTEP INTO THE STUDIO\u003c\/h2\u003e\n\u003cp\u003eWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\u003c\/p\u003e\n\u003ch2\u003eSIT IN THE PERFORMANCE SPACE\u003c\/h2\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music. \u003c\/p\u003e\n\u003ch2\u003eDAC3 TECHNOLOGIES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHarmonic Compensation\u003c\/li\u003e\n\u003cli\u003eHybrid Gain Control\u003c\/li\u003e\n\u003cli\u003eUltraLock3™ Jitter Attenuation System\u003c\/li\u003e\n\u003cli\u003eHigh-Headroom DSP\u003c\/li\u003e\n\u003cli\u003eMulti-Mode Asynchronous USB Audio System\u003c\/li\u003e\n\u003cli\u003eQuad 32-bit balanced D\/A Conversion System\u003c\/li\u003e\n\u003cli\u003eDistributed Power Regulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHARMONIC COMPENSATION\u003c\/h3\u003e\n\u003cp\u003eThe ES9028PRO has two distortion compensation systems that independently remove most of the 2nd and 3rd harmonic distortion in the D\/A converter. Benchmark's ultra-clean analog output stages allow these systems to be fully leveraged in the DAC3. To the best of our knowledge, no other D\/A converter has lower THD than the Benchmark DAC3.\u003c\/p\u003e\n\u003ch3\u003eHYBRID GAIN CONTROL\u003c\/h3\u003e\n\u003cp\u003e\"HGC\" is Benchmark's unique Hybrid Gain Control system. The DAC3 combines active analog gain control, passive low-impedance attenuators, a 32-bit digital gain control, and a servo-driven volume control. All inputs are controlled by the rotary volume control. This volume control moves in response to commands from the remote control. Analog inputs are never converted to digital, and digital inputs never pass through an analog potentiometer. Digital inputs are precisely controlled in the 32-bit DSP system. The DSP system preserves precise L\/R balance, and precise stereo imaging, while avoiding any source of noise and distortion.\u003c\/p\u003e\n\u003cp\u003eBenchmark's unique passive output attenuators provide distortion-free gain reduction without reducing the dynamic range of the converter. The attenuators optimize the gain staging between the DAC3 and the power amplifier. This optimization is absolutely essential for maximizing the dynamic range of the entire playback system. Much of the success of the DAC1 and DAC2 converters can be attributed to the passive output attenuators. Musical details can be obscured by system noise whenever a preamplifier and power amplifier are improperly matched. The\" HGC \" system will make full use of your power amplifier's dynamic range. Experience new details in your favorite recordings.\u003c\/p\u003e\n\u003ch3\u003eULTRALOCK3™ JITTER ATTENUATION SYSTEM\u003c\/h3\u003e\n\u003cp\u003eUltraLock3™ is an improved version of the UltraLock2™ system used in the DAC2 product family. UltraLock3™ locks with precise phase accuracy in only 6 ms. In contrast, the UltraLock2™ system required 400 ms. Both UltraLock™ systems provide virtually perfect jitter attenuation, but the lightning-fast lock time of the new UltraLock3™ will be appreciated by many of our users.\u003c\/p\u003e\n\u003cp\u003eDSP processing is 32-bits, DSP headroom is 3.5 dB, sample rate is 211 kHz, and jitter-induced distortion and noise is at least 140 dB below the level of the music - well below the threshold of hearing. Benchmark's UltraLock3™ system eliminates all audible jitter artifacts.\u003c\/p\u003e\n\u003ch3\u003eHIGH HEADROOM DSP - WITH 3.5 DB \"EXCESS\" DIGITAL HEADROOM\u003c\/h3\u003e\n\u003cp\u003eAll of the digital processing in the DAC3 is designed to handle signals as high as +3.5 dBFS. Most digital systems clip signals that exceed 0 dBFS. The 0 dBFS limitation seems reasonable, as 0 dBFS is the highest sinusoidal signal level that can be represented in a digital system. However, a detailed investigation of the mathematics of PCM digital systems will reveal that inter-sample peaks may reach levels slightly higher than +3 dBFS while individual samples never exceed 0 dBFS. These inter-sample overs are common in commercial releases, and are of no consequence in a PCM system until they reach an interpolation process. But, for a variety of reasons, virtually all audio D\/A converters use an interpolation process. The interpolation process is absolutely necessary to achieve 24-bit state-of-the art conversion performance. Unfortunately, inter-sample overs cause clipping in most interpolators. This clipping produces distortion products that are non-harmonic and non-musical . We believe these broadband distortion products often add a harshness or false high-frequency sparkle to digital reproduction. The DAC3 avoids these problems by maintaining at least 3.5 dB of headroom in the entire conversion system. We believe this added headroom is a groundbreaking improvement.\u003c\/p\u003e\n\u003ch3\u003eMULTI-MODE ASYNCHRONOUS USB SYSTEM\u003c\/h3\u003e\n\u003cp\u003eBenchmark's USB system supports USB Audio 2.0, DSD, and USB Audio 1.1. It is frequency agile, and will follow sample rate changes initiated by the computer and\/or the media playback software. In all modes the USB communications are asynchronous in order to eliminate unnecessary sources of jitter.\u003cbr\u003e\u003cbr\u003eThe DAC3 has a low-jitter master clock which controls the transfer of audio data from the computer to the USB sub-system. The computer asynchronously transfers audio data to a buffer in the DAC3. The contents of the buffer are then asynchronously transferred to the D\/A conversion subsystem. This second asynchronous transfer eliminates any traces of jitter that accumulate as the data is transferred between the USB and conversion subsystems. No traces of jitter-induced distortion are measurable to our measurement limits (better than -150 dBFS). This truly represents the state-of-the art. Enjoy the convenience of computer playback without compromise. The Asynchronous USB system supports USB Audio 2.0 for high-resolution 192kHz, and DSD playback. No drivers are required for MAC operating systems. An easy-to-install driver adds 192 kHz and DSD capabilities to Windows operating systems.\u003cbr\u003e\u003cbr\u003eAn asynchronous, driverless USB Audio 1.1 mode supports sample rates up to 96 kHz. This USB mode can be selected from the front panel or from the remote control. The driverless USB Audio 1.1 mode allows quick plug-and-play connections to Windows, MAC, iOS, and Linux operating systems without installing drivers. Just plug in the USB, and the DAC3 becomes an available audio device.\u003cbr\u003e\u003cbr\u003eThe USB subsystem remains active when the DAC3 is powered down. This prevents interruptions to the computer playback operations and eliminates the need to reconfigure the computer every time the converter is turned on.\u003c\/p\u003e\n\u003ch3\u003eQUAD 32-BIT BALANCED CONVERSION SYSTEM\u003c\/h3\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters deliver audio to Benchmark's low-impedance current to voltage converters. The 4:1 redundancy reduces noise and distortion to levels that set new benchmarks. The conversion system at the core of the DAC3 is as good as it gets. The analog circuits that follow the D\/A converter are carefully designed. Benchmark has leveraged its long history of building high-end analog audio equipment, in order to create an outstanding output stage.\u003c\/p\u003e\n\u003cp\u003eThe conversion system in the DAC3 achieves a 6 dB signal to noise improvement through the use of 4:1 summing. The ES9028PRO D\/A is an 8-channel 32-bit converter. In the DAC3, four channels are summed in the analog domain to form each of the two output channels.\u003c\/p\u003e\n\u003cp\u003eThe 4:1 summing also improves the THD. The non-linearities in individual conversion channels are averaged across the four summed channels and incoherent non-linearities are attenuated by 6 dB.\u003c\/p\u003e\n\u003ch3\u003eDIAGNOSTIC TOOLS - SAMPLE-RATE AND WORD-LENGTH INDICATORS\u003c\/h3\u003e\n\u003cp\u003eEver wonder why that 192 kHz 24-bit download on your computer just doesn't sound right? Your media player may be down-sampling to 44.1 kHz and\/or truncating to 16-bits. Many computers and media players apply poor-quality sample rate conversion and truncation. Fortunately these problems can be eliminated with the selection a good frequency-agile media player. The sample-rate and word-length displays on the DAC3 confirm the proper operation of your media player.\u003c\/p\u003e\n\u003ch2\u003ePOLARITY SWITCH\u003c\/h2\u003e\n\u003cp\u003eYou may encounter recordings with inverted polarity. The DAC3 HGC and DAC3 L include a polarity switch to correct the problem.\u003c\/p\u003e\n\u003ch2\u003eHOME THEATER BYPASS\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 can be integrated into a home theater system. Typically the DAC3 drives the left and right power amplifiers, and an analog feed from the home theater system is connected to either of the analog inputs on the DAC3. A programmable Home Theater Bypass function sets the pass-through gain to unity when the surround system is active. The DAC3 HGC and DAC3 L include an indicator light that is illuminated when bypass is active.\u003c\/p\u003e\n\u003ch2\u003eDIGITAL PASS THROUGH\u003c\/h2\u003e\n\u003cp\u003eThe second coaxial input on the DAC3 can be reconfigured as a digital output. In output mode, any selected digital input (including USB) will pass through to the coaxial output. The digital pass through is bit-transparent and even supports DSD (DoP 1.1). Dolby digital and DTS formats can also be passed through to a surround processor.\u003c\/p\u003e\n\u003ch2\u003eBI-DIRECTIONAL 12 VOLT TRIGGER\u003c\/h2\u003e\n\u003cp\u003eBenchmark re-invents the 12 volt trigger. The trigger connection on the DAC2 can be used as an input, an output, or both. It is compatible with any common 12 volt trigger input or output. The trigger can be used to turn a power amplifier on or off automatically. The DAC3 will also respond to a 12 volt trigger to follow the actions of another audio component.\u003c\/p\u003e\n\u003ch2\u003ePOWER SWITCH\u003c\/h2\u003e\n\u003cp\u003eThe power switch can place the DAC3 in standby, or full shut down. In full shut down, the unit will still respond to the trigger input and the IR remote control. Power consumption is less than 0.5 W in full shut down.\u003c\/p\u003e\n\u003ch2\u003eLOW POWER CONSUMPTION\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 uses high-efficiency low noise power supplies and may be operated from any standard international voltage without adjustment. Power consumption is 12 W typical.\u003c\/p\u003e\n\u003ch2\u003eDISTRIBUTED POWER REGULATION\u003c\/h2\u003e\n\u003cp\u003eTo achieve the lowest possible noise, the DAC3 uses distributed power supply regulation. Each critical subsystem has at least one dedicated low-noise voltage regulator.\u003c\/p\u003e\n\u003ctable width=\"667\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003ch2\u003eAUDIO PERFORMANCE\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003cp\u003eFs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu (unless noted)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSNR – A-Weighted, 0 dBFS = +27 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e128 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSNR – Unweighted, 0 dBFS = +27 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e126 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at 0 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-113 dBFS, -113 dB, 0.00022%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at -1 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-114 dBFS, -113 dB, 0.00022%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at –3 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-119 dBFS, -116 dB, 0.00016%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 20 to 20 kHz test tone at –3 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-113 dBFS, -110 dB, 0.00032%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency Response at Fs=192 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+0 dB, -0.015 dB (20 to 20 kHz)\u003c\/p\u003e\n\u003cp\u003e-0.015 dB at 10 Hz\u003c\/p\u003e\n\u003cp\u003e-0.005 dB at 20 kHz\u003c\/p\u003e\n\u003cp\u003e-0.031 dB at 40 kHz\u003c\/p\u003e\n\u003cp\u003e-0.15 dB at 80 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency Response at Fs=48 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+0 dB, -0.015 dB (20 to 20 kHz)\u003c\/p\u003e\n\u003cp\u003e-0.015 dB at 10 Hz\u003c\/p\u003e\n\u003cp\u003e-0.005 dB at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eCrosstalk\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-137 dB at 20 Hz\u003c\/p\u003e\n\u003cp\u003e-130 dB at 1 kHz\u003c\/p\u003e\n\u003cp\u003e-116 dB at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Jitter Induced Sidebands (10 kHz 0 dBFS test tone, 12.75 UI sinusoidal jitter at 1 kHz)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -144 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Spurious Tones with 0 dBFS test signal\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -138 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Idle Tones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -147 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of AC line related Hum \u0026amp; Noise\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -133 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInter-channel Differential Phase (Stereo Pair – any sample rate)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+\/- 0.25 degrees at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInter-channel Differential Phase (Between DAC3 Units Fs\u0026lt;110 kHz) Any sample rate.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+\/- 0.25 degrees at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Lock Time after Fs change\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e6 ms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSoft Mute Ramp Up\/Down Time\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.6 ms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Receive Error\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Lock Error\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Idle Channel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eNo\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003e50\/15 us De-Emphasis Enable\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eAutomatic in Consumer Mode\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDe-Emphasis Method\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eDigital IIR\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDe-Emphasis Supported at\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eFs = 32, 44.1, 48 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992221\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655464\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685340\"\u003e\u003c\/a\u003eGROUP DELAY (LATENCY)\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDelay – Digital Input to Analog Output (function of sample rate)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e1.36 ms at 44.1 kHz\u003c\/p\u003e\n\u003cp\u003e1.27 ms at 48 kHz\u003c\/p\u003e\n\u003cp\u003e0.90 ms at 88.2 kHz\u003c\/p\u003e\n\u003cp\u003e0.82 ms at 96 kHz\u003c\/p\u003e\n\u003cp\u003e0.51 ms at 176.4 kHz\u003c\/p\u003e\n\u003cp\u003e0.47 ms at 192 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992222\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655465\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685342\"\u003e\u003c\/a\u003eDIGITAL AUDIO INPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Digital Inputs (switch selected)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e5 (1 USB, 2 Optical, 2 Coaxial)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Channels\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInput Sample Frequency Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e28 to 210 kHz (Coaxial Inputs)\u003c\/p\u003e\n\u003cp\u003e28 to 96 kHz (Optical Inputs)\u003c\/p\u003e\n\u003cp\u003e44.1, 48, 88.2, 96, 176.4, 192 kHz (USB Input)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Input Word Length\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e24 bits\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDigital Input Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e75 Ohms (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDC Blocking Capacitors on Digital Inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTransient and Over-Voltage Protection on Digital Inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMinimum Digital Input Level\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e250 mVpp (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003e\u003ca name=\"_Toc405992223\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655466\"\u003e\u003c\/a\u003eJitter Tolerance\u003c\/p\u003e\n\u003cp\u003e(With no Measurable Change in Performance)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026gt;12.75 UI sine, 100 Hz to 3 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 20 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 40 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 80 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 90 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;0.25 UI sine above 160 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eJitter Attenuation Method\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eBenchmark UltraLock3™ - all inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992224\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655467\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685343\"\u003e\u003c\/a\u003eBALANCED ANALOG OUTPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Balanced Analog Outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Connector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eGold-Pin Neutrik™ male XLR\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e60 Ohms (Attenuator off)\u003c\/p\u003e\n\u003cp\u003e425 Ohms (Attenuator = 10 dB)\u003c\/p\u003e\n\u003cp\u003e135 Ohms (Attenuator = 20 dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eAnalog Output Clip Point\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+30 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFactory Set Bypass Level (at 0 dBFS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+24 dBu (Attenuator = 0 dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Range (at 0 dBFS) In ‘Variable’ Mode\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eOff to +27.5 dBu (Attenuator off)\u003c\/p\u003e\n\u003cp\u003eOff to +17.5 dBu (Attenuator = 10 dB)\u003c\/p\u003e\n\u003cp\u003eOff to +7.5 dBu (Attenuator = 20 dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Variation with Sample Rate (44.1 kHz vs. 96 kHz)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; +\/- 0.006 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992225\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655468\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685344\"\u003e\u003c\/a\u003eUNBALANCED ANALOG OUTPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Unbalanced Analog Outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e4\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Connector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eRCA\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e30 Ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eAnalog Output Clip Point\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+13.5 dBu (3.7 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFactory Set Home Theater Bypass Output Level (at 0 dBFS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+8.2 dBu (2 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Range (with 0 dBFS digital input)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eOff to +11.7 dBu (3 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Variation with Sample Rate\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; +\/- 0.006 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992227\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655470\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685346\"\u003e\u003c\/a\u003eSTATUS DISPLAY\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"397\"\u003e\n\u003cp\u003eIndicators - Type and Location\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"270\"\u003e\n\u003cp\u003e16 LED’s on Front Panel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"397\"\u003e\n\u003cp\u003eSelection\/Status Indication\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"270\"\u003e\n\u003cp\u003e1 – Dim\/Mute\u003c\/p\u003e\n\u003cp\u003e1 - Polarity\u003cbr\u003e6 – Input\u003cbr\u003e2 – Bypass\/Calibrated Output\u003cbr\u003e2 – Word length\u003cbr\u003e4 – Sample Rate\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992228\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655471\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685347\"\u003e\u003c\/a\u003eAC POWER REQUIREMENTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNominal Input Operating Voltage Range (VAC RMS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e100 – 240V\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e50-60 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003ePower\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; 0.5 Watts Idle\u003cbr\u003e12 Watts Typical Program\u003cbr\u003e15 Watts Maximum\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFuses\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e5 x 20 mm (2 required)\u003cbr\u003e0.5 A 250 V Slo-Blo\u003csup\u003e®\u003c\/sup\u003e Type\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMin\/Max Operating range (VAC RMS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e90 – 260 VAC\u003cbr\u003e47 – 63 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992229\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655472\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685348\"\u003e\u003c\/a\u003eDIMENSIONS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eForm Factor\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e½ Rack Wide, 1 RU High\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDepth behind front panel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e8.5” (216 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOverall depth including connectors but without power cord\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.33” (237 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eWidth\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.5” (249 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eHeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e1.725” (44.5 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"667\" colspan=\"2\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992230\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655473\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685349\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc111628075\"\u003e\u003c\/a\u003eWEIGHT\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDAC3 only\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e3 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDAC3 with remote control, power cord, extra fuses, and manual\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e4 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eShipping weight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e7 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eIMPORTANT FEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample Rate Display\u003c\/li\u003e\n\u003cli\u003eWord Length Display\u003c\/li\u003e\n\u003cli\u003e5 Digital Inputs\u003c\/li\u003e\n\u003cli\u003e2 Stereo Analog Inputs (2 RCA)\u003c\/li\u003e\n\u003cli\u003e3 Stereo Analog Outputs (2 RCA, 1 XLR)\u003c\/li\u003e\n\u003cli\u003eDigital Pass Through\u003c\/li\u003e\n\u003cli\u003eNative DSD Conversion\u003c\/li\u003e\n\u003cli\u003ePolarity Switch\u003c\/li\u003e\n\u003cli\u003eAsynchronous USB 2.0\u003c\/li\u003e\n\u003cli\u003eDriverless Asynchronous USB 1.1\u003c\/li\u003e\n\u003cli\u003eHome Theater Bypass\u003c\/li\u003e\n\u003cli\u003eBi-Directional 12 Volt Trigger\u003c\/li\u003e\n\u003cli\u003ePower Switch\u003c\/li\u003e\n\u003cli\u003eLow Power Consumption\u003c\/li\u003e\n\u003cli\u003eES9028PRO Converter\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Music Room","offers":[{"title":"Black \/ WIthout Remote","offer_id":51267883041049,"sku":"2221newBMRK-BL-WI-1","price":2099.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ With Remote","offer_id":51267883073817,"sku":"2221newBMRK-BL-WI","price":2199.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ WIthout Remote","offer_id":51267883106585,"sku":"2221newBMRK-SI-WI-1","price":2099.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ With Remote","offer_id":51267883139353,"sku":"2221newBMRK-SI-WI","price":2199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Benchmark_DAC3_L_DAC_1.jpg?v=1768992041"},{"product_id":"benchmark-dac3-b-dac","title":"Benchmark DAC3 B DAC","description":"\u003ch2 class=\"product_name\"\u003eBENCHMARK DAC3 B - DIGITAL TO ANALOG AUDIO CONVERTER\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 B is the ideal converter to use in front of Benchmark's HPA4 headphone amplifier or LA4 line amplifier. It is also ideal for many professional studio applications. It delivers the full performance of the flagship DAC3 HGC, but eliminates the volume control, the analog inputs, the mute and polarity controls, and the headphone amplifier. \u003c\/p\u003e\n\u003ch2\u003eDAC3 B - REFERENCE QUALITY - BASIC FEATURES\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 B is the basic D\/A converter in Benchmark's DAC3 converter series. The DAC3 B is the ideal converter to use in front of Benchmark's HPA4 headphone amplifier or LA4 line amplifier. It is also ideal for many professional studio applications. It delivers the full performance of the flagship DAC3 HGC, but eliminates the volume control, the analog inputs, the mute and polarity controls, and the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003eTo make system integration easy, the DAC3 B retains IR remote control (handset optional), 12 V trigger,  and the programmable auto-on feature. The DAC3 B adds a control-lock feature that turns off the remote control and locks the keypad to prevent tampering and accidental changes. The optional 1\/2-width rack-mount faceplate allows the mounting of two units in a single 1-RU rack space.\u003c\/p\u003e\n\u003cp\u003eThe DAC3 B sounds exactly like the DAC3 HGC because it uses the exact same circuit board and the exact same audio path. Benchmark has simply eliminated the unnecessary parts to deliver a stripped down race car of a converter. If you want a basic D\/A converter that delivers the finest conversion available, the DAC3 B is for you. The DAC3 B  is a 2-channel D\/A converter featuring the new ESS Technologies ES9028PRO converter chip. The DAC3 converter has lower THD and THD+N noise than Benchmark's DAC2 converters.\u003c\/p\u003e\n\u003cp\u003eBenchmark's DAC1 and DAC2 D\/A converter families have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or the DAC2. Benchmark converters are in daily use at many of the world's finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar again ... the DAC3 defines a new reference.\u003c\/p\u003e\n\u003ch2\u003eREFERENCE PERFORMANCE\u003c\/h2\u003e\n\u003cp\u003eThe DAC3  delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.\u003c\/p\u003e\n\u003cp\u003eInternal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D\/A converters.\u003c\/p\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters are summed together to create each balanced analog output. This 4:1 summation provides a 6 dB noise reduction, and gives the DAC3 industry-leading performance.\u003c\/p\u003e\n\u003ch2\u003eDAC3 VS. DAC2\u003c\/h2\u003e\n\u003cp\u003eThe DAC3builds upon Benchmark’s highly successful DAC2 product family. The DAC3 maintains the familiar DAC2 form factor and feature set, but adds the higher performance available from the new ES9028PRO D\/A converter. The DAC3 offers the following improvements over the DAC2:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActive 2nd Harmonic Compensation\u003c\/li\u003e\n\u003cli\u003eActive 3rd Harmonic Compensation\u003c\/li\u003e\n\u003cli\u003eLower THD+N\u003c\/li\u003e\n\u003cli\u003eLower passband ripple\u003c\/li\u003e\n\u003cli\u003eImproved frequency response\u003c\/li\u003e\n\u003cli\u003eFaster PLL lock times\u003c\/li\u003e\n\u003cli\u003eFaster switching between input signals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDAC3 VS. DAC1\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 and DAC2 added these features that were not found on the DAC1:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAsynchronous 192kHz USB Audio 2.0\u003c\/li\u003e\n\u003cli\u003e32-bit D\/A conversion system\u003c\/li\u003e\n\u003cli\u003eWord Length Display\u003c\/li\u003e\n\u003cli\u003eSample Rate Display\u003c\/li\u003e\n\u003cli\u003eDirect DSD D\/A Conversion\u003c\/li\u003e\n\u003cli\u003eBi-Directional 12V Trigger\u003c\/li\u003e\n\u003cli\u003ePower Switch with Auto-On Function\u003c\/li\u003e\n\u003cli\u003eDigital Pass-Through\u003c\/li\u003e\n\u003cli\u003eHigh-Headroom DSP\u003c\/li\u003e\n\u003cli\u003eAdditional I\/O\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNATIVE DSD CONVERSION\u003c\/h2\u003e\n\u003cp\u003eAll digital inputs on the DAC3 support native 192 kHz PCM or DSD64 conversion. From any input, DSD is transported with bit accuracy over DoP 1.1. DSD and PCM are both natively converted to analog. There are no DSD to PCM or PCM to DSD conversions to compromise the quality of the music. The DAC3 conversion system seamlessly switches between native PCM and native DSD conversion. DSD over DoP 1.1 is supported by many media players, and DSD downloads are now available from several sources.\u003c\/p\u003e\n\u003ch2\u003eSONICALLY-NEUTRAL STUDIO MONITORING\u003c\/h2\u003e\n\u003cp\u003eAll Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. For this reason, DAC3 converters are ideal for critical reference-quality professional systems. Unlike many competing products, the DAC3 is not designed to add \"euphonic\" coloration to the audio. Instead it is designed to be as uncolored and natural as possible.\u003c\/p\u003e\n\u003ch2\u003eSTEP INTO THE STUDIO\u003c\/h2\u003e\n\u003cp\u003eWhen Benchmark's professional converters are used in hi-fi applications, studio-quality sound can be enjoyed in a home environment. Enjoy pure music without any coloration from the electronics. Hear the music exactly the way it was heard in the studio, and exactly the way the artists intended.\u003c\/p\u003e\n\u003cp\u003eDiscover the natural, uncolored, analog sound of the DAC3.\u003c\/p\u003e\n\u003ch2\u003eSIT IN THE PERFORMANCE SPACE\u003c\/h2\u003e\n\u003cp\u003eTransparent sound can go beyond replicating the studio experience. Recordings that have been produced with a natural and unprocessed sound can transport you to the performance space. But, this can only happen when the entire playback chain is selected for maximum transparency.\u003c\/p\u003e\n\u003cp\u003eThis experience of \"being there\" cannot be created by systems that are designed to add \"warmth\" or \"euphonic color\" to the music. \u003c\/p\u003e\n\u003ch2\u003eDAC3 TECHNOLOGIES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHarmonic Compensation\u003c\/li\u003e\n\u003cli\u003eUltraLock3™ Jitter Attenuation System\u003c\/li\u003e\n\u003cli\u003eHigh-Headroom DSP\u003c\/li\u003e\n\u003cli\u003eMulti-Mode Asynchronous USB Audio System\u003c\/li\u003e\n\u003cli\u003eQuad 32-bit balanced D\/A Conversion System\u003c\/li\u003e\n\u003cli\u003eDistributed Power Regulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHARMONIC COMPENSATION\u003c\/h3\u003e\n\u003cp\u003eThe ES9028PRO has two distortion compensation systems that independently remove most of the 2nd and 3rd harmonic distortion in the D\/A converter. Benchmark's ultra-clean analog output stages allow these systems to be fully leveraged in the DAC3. To the best of our knowledge, no other D\/A converter has lower THD than the Benchmark DAC3.\u003c\/p\u003e\n\u003ch3\u003eULTRALOCK3™ JITTER ATTENUATION SYSTEM\u003c\/h3\u003e\n\u003cp\u003eUltraLock3™ is an improved version of the UltraLock2™ system used in the DAC2 product family. UltraLock3™ locks with precise phase accuracy in only 6 ms. In contrast, the UltraLock2™ system required 400 ms. Both UltraLock™ systems provide virtually perfect jitter attenuation, but the lightning-fast lock time of the new UltraLock3™ will be appreciated by many of our users.\u003c\/p\u003e\n\u003cp\u003eDSP processing is 32-bits, DSP headroom is 3.5 dB, sample rate is 211 kHz, and jitter-induced distortion and noise is at least 140 dB below the level of the music - well below the threshold of hearing. Benchmark's UltraLock3™ system eliminates all audible jitter artifacts.\u003c\/p\u003e\n\u003ch3\u003eHIGH HEADROOM DSP - WITH 3.5 DB \"EXCESS\" DIGITAL HEADROOM\u003c\/h3\u003e\n\u003cp\u003eAll of the digital processing in the DAC3 is designed to handle signals as high as +3.5 dBFS. Most digital systems clip signals that exceed 0 dBFS. The 0 dBFS limitation seems reasonable, as 0 dBFS is the highest sinusoidal signal level that can be represented in a digital system. However, a detailed investigation of the mathematics of PCM digital systems will reveal that \u003ca title='\"Audio That Goes to 11\" - Application Note by John Siau' href=\"http:\/\/benchmarkmedia.com\/blogs\/application_notes\/13545433-audio-that-goes-to-11\" rel=\"noopener\" target=\"_blank\"\u003e \u003c\/a\u003einter-sample peaks may reach levels slightly higher than +3 dBFS while individual samples never exceed 0 dBFS. These inter-sample overs are common in commercial releases, and are of no consequence in a PCM system until they reach an interpolation process. But, for a variety of reasons, virtually all audio D\/A converters use an interpolation process. The interpolation process is absolutely necessary to achieve 24-bit state-of-the art conversion performance. Unfortunately, inter-sample overs cause clipping in most interpolators. This clipping produces distortion products that are non-harmonic and non-musical . We believe these broadband distortion products often add a harshness or false high-frequency sparkle to digital reproduction. The DAC3 avoids these problems by maintaining at least 3.5 dB of headroom in the entire conversion system. We believe this added headroom is a groundbreaking improvement.\u003c\/p\u003e\n\u003ch3\u003eMULTI-MODE ASYNCHRONOUS USB SYSTEM\u003c\/h3\u003e\n\u003cp\u003eBenchmark's USB system supports USB Audio 2.0, DSD, and USB Audio 1.1. It is frequency agile, and will follow sample rate changes initiated by the computer and\/or the media playback software. In all modes the USB communications are asynchronous in order to eliminate unnecessary sources of jitter.\u003cbr\u003e\u003cbr\u003eThe DAC3 has a low-jitter master clock which controls the transfer of audio data from the computer to the USB sub-system. The computer asynchronously transfers audio data to a buffer in the DAC3. The contents of the buffer are then asynchronously transferred to the D\/A conversion subsystem. This second asynchronous transfer eliminates any traces of jitter that accumulate as the data is transferred between the USB and conversion subsystems. No traces of jitter-induced distortion are measurable to our measurement limits (better than -150 dBFS). This truly represents the state-of-the art. Enjoy the convenience of computer playback without compromise. The Asynchronous USB system supports USB Audio 2.0 for high-resolution 192kHz, and DSD playback. No drivers are required for MAC operating systems. An easy-to-install driver adds 192 kHz and DSD capabilities to Windows operating systems.\u003cbr\u003e\u003cbr\u003eAn asynchronous, driverless USB Audio 1.1 mode supports sample rates up to 96 kHz. This USB mode can be selected from the front panel or from the remote control. The driverless USB Audio 1.1 mode allows quick plug-and-play connections to Windows, MAC, iOS, and Linux operating systems without installing drivers. Just plug in the USB, and the DAC3 becomes an available audio device.\u003cbr\u003e\u003cbr\u003eThe USB subsystem remains active when the DAC3 is powered down. This prevents interruptions to the computer playback operations and eliminates the need to reconfigure the computer every time the converter is turned on.\u003c\/p\u003e\n\u003ch3\u003eQUAD 32-BIT BALANCED CONVERSION SYSTEM\u003c\/h3\u003e\n\u003cp\u003eFour balanced 32-bit D\/A converters deliver audio to Benchmark's low-impedance current to voltage converters. The 4:1 redundancy reduces noise and distortion to levels that set new benchmarks. The conversion system at the core of the DAC3 is as good as it gets. The analog circuits that follow the D\/A converter are carefully designed. Benchmark has leveraged its long history of building high-end analog audio equipment, in order to create an outstanding output stage.\u003c\/p\u003e\n\u003cp\u003eThe conversion system in the DAC3 achieves a 6 dB signal to noise improvement through the use of 4:1 summing. The ES9028PRO D\/A is an 8-channel 32-bit converter. In the DAC3, four channels are summed in the analog domain to form each of the two output channels.\u003c\/p\u003e\n\u003cp\u003eThe 4:1 summing also improves the THD. The non-linearities in individual conversion channels are averaged across the four summed channels and incoherent non-linearities are attenuated by 6 dB.\u003c\/p\u003e\n\u003ch3\u003eDIAGNOSTIC TOOLS - SAMPLE-RATE AND WORD-LENGTH INDICATORS\u003c\/h3\u003e\n\u003cp\u003eEver wonder why that 192 kHz 24-bit download on your computer just doesn't sound right? Your media player may be down-sampling to 44.1 kHz and\/or truncating to 16-bits. Many computers and media players apply poor-quality sample rate conversion and truncation. Fortunately these problems can be eliminated with the selection a good frequency-agile media player. The sample-rate and word-length displays on the DAC3 confirm the proper operation of your media player.\u003c\/p\u003e\n\u003ch2\u003eCONTROL LOCK\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 B can be locked to avoid accidental changes that could cause a loss of audio in dedicated applications. This feature disables the IR remote control and the front panel buttons.\u003c\/p\u003e\n\u003ch2\u003eDIGITAL PASS THROUGH\u003c\/h2\u003e\n\u003cp\u003eThe second coaxial input on the DAC3 can be reconfigured as a digital output. In output mode, any selected digital input (including USB) will pass through to the coaxial output. The digital pass through is bit-transparent and even supports DSD (DoP 1.1). Dolby digital and DTS formats can also be passed through to a surround processor.\u003c\/p\u003e\n\u003ch2\u003eBI-DIRECTIONAL 12 VOLT TRIGGER\u003c\/h2\u003e\n\u003cp\u003eBenchmark re-invents the 12 volt trigger. The trigger connection on the DAC2 can be used as an input, an output, or both. It is compatible with any common 12 volt trigger input or output. The trigger can be used to turn a power amplifier on or off automatically. The DAC3 will also respond to a 12 volt trigger to follow the actions of another audio component.\u003c\/p\u003e\n\u003ch2\u003ePOWER SWITCH\u003c\/h2\u003e\n\u003cp\u003eThe power switch can place the DAC3 in standby, or full shut down. In full shut down, the unit will still respond to the trigger input and the IR remote control. Power consumption is less than 0.5 W in full shut down.\u003c\/p\u003e\n\u003ch2\u003eLOW POWER CONSUMPTION\u003c\/h2\u003e\n\u003cp\u003eThe DAC3 uses high-efficiency low noise power supplies and may be operated from any standard international voltage without adjustment. Power consumption is 12 W typical.\u003c\/p\u003e\n\u003ch2\u003eDISTRIBUTED POWER REGULATION\u003c\/h2\u003e\n\u003cp\u003eTo achieve the lowest possible noise, the DAC3 uses distributed power supply regulation. Each critical subsystem has at least one dedicated low-noise voltage regulator.\u003c\/p\u003e\n\u003ctable width=\"667\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003eAUDIO PERFORMANCE\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003cp\u003eFs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu (unless noted)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSNR – A-Weighted, 0 dBFS = +24 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e125 dB, 128 dB relative to intersample peaks\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSNR – Unweighted, 0 dBFS = +24 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e123 dB, 126 dB relative to intersample peaks\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at 0 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-113 dBFS, -113 dB, 0.00022%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at -1 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-114 dBFS, -113 dB, 0.00022%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 1 kHz at –3 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-119 dBFS, -116 dB, 0.00016%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTHD+N, 20 to 20 kHz test tone at –3 dBFS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-113 dBFS, -110 dB, 0.00032%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency Response at Fs=192 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+0 dB, -0.015 dB (20 to 20 kHz)\u003c\/p\u003e\n\u003cp\u003e-0.015 dB at 10 Hz\u003c\/p\u003e\n\u003cp\u003e-0.005 dB at 20 kHz\u003c\/p\u003e\n\u003cp\u003e-0.031 dB at 40 kHz\u003c\/p\u003e\n\u003cp\u003e-0.15 dB at 80 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency Response at Fs=48 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+0 dB, -0.015 dB (20 to 20 kHz)\u003c\/p\u003e\n\u003cp\u003e-0.015 dB at 10 Hz\u003c\/p\u003e\n\u003cp\u003e-0.005 dB at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eCrosstalk\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e-137 dB at 20 Hz\u003c\/p\u003e\n\u003cp\u003e-130 dB at 1 kHz\u003c\/p\u003e\n\u003cp\u003e-116 dB at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Jitter Induced Sidebands (10 kHz 0 dBFS test tone, 12.75 UI sinusoidal jitter at 1 kHz)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -144 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Spurious Tones with 0 dBFS test signal\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -138 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of Idle Tones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -147 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Amplitude of AC line related Hum \u0026amp; Noise\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; -133 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInter-channel Differential Phase (Stereo Pair – any sample rate)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+\/- 0.25 degrees at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInter-channel Differential Phase (Between DAC3 Units Fs\u0026lt;110 kHz) Any sample rate.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+\/- 0.25 degrees at 20 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Lock Time after Fs change\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e6 ms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eSoft Mute Ramp Up\/Down Time\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.6 ms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Receive Error\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Lock Error\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMute on Idle Channel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eNo\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003e50\/15 us De-Emphasis Enable\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eAutomatic in Consumer Mode\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDe-Emphasis Method\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eDigital IIR\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDe-Emphasis Supported at\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eFs = 32, 44.1, 48 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992221\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655464\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685340\"\u003e\u003c\/a\u003eGROUP DELAY (LATENCY)\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDelay – Digital Input to Analog Output (function of sample rate)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e1.36 ms at 44.1 kHz\u003c\/p\u003e\n\u003cp\u003e1.27 ms at 48 kHz\u003c\/p\u003e\n\u003cp\u003e0.90 ms at 88.2 kHz\u003c\/p\u003e\n\u003cp\u003e0.82 ms at 96 kHz\u003c\/p\u003e\n\u003cp\u003e0.51 ms at 176.4 kHz\u003c\/p\u003e\n\u003cp\u003e0.47 ms at 192 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992222\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655465\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685342\"\u003e\u003c\/a\u003eDIGITAL AUDIO INPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Digital Inputs (switch selected)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e5 (1 USB, 2 Optical, 2 Coaxial)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Channels\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eInput Sample Frequency Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e28 to 210 kHz (Coaxial Inputs)\u003c\/p\u003e\n\u003cp\u003e28 to 96 kHz (Optical Inputs)\u003c\/p\u003e\n\u003cp\u003e44.1, 48, 88.2, 96, 176.4, 192 kHz (USB Input)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMaximum Input Word Length\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e24 bits\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDigital Input Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e75 Ohms (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDC Blocking Capacitors on Digital Inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eTransient and Over-Voltage Protection on Digital Inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eYes (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMinimum Digital Input Level\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e250 mVpp (Coaxial Inputs)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003e\u003ca name=\"_Toc405992223\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655466\"\u003e\u003c\/a\u003eJitter Tolerance\u003c\/p\u003e\n\u003cp\u003e(With no Measurable Change in Performance)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026gt;12.75 UI sine, 100 Hz to 3 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 20 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 40 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 80 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;1.5 UI sine at 90 kHz\u003c\/p\u003e\n\u003cp\u003e\u0026gt;0.25 UI sine above 160 kHz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eJitter Attenuation Method\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eBenchmark UltraLock3™ - all inputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992224\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655467\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685343\"\u003e\u003c\/a\u003eBALANCED ANALOG OUTPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Balanced Analog Outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Connector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eGold-Pin Neutrik™ male XLR\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e60 Ohms (Attenuator off)\u003c\/p\u003e\n\u003cp\u003e425 Ohms (Attenuator = 10 dB)\u003c\/p\u003e\n\u003cp\u003e135 Ohms (Attenuator = 20 dB)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eAnalog Output Clip Point\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+30 dBu\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFactory Calibration (at 0 dBFS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+24 dBu (Attenuator off)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Variation with Sample Rate (44.1 kHz vs. 96 kHz)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; +\/- 0.006 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992225\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655468\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685344\"\u003e\u003c\/a\u003eUNBALANCED ANALOG OUTPUTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNumber of Unbalanced Analog Outputs\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e2\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Connector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003eRCA\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Impedance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e30 Ohms\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eAnalog Output Clip Point\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+13.5 dBu (3.7 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFactory Calibration (at 0 dBFS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e+8.2 dBu (2 Vrms)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOutput Level Variation with Sample Rate\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; +\/- 0.006 dB\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992227\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655470\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685346\"\u003e\u003c\/a\u003eSTATUS DISPLAY\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"397\"\u003e\n\u003cp\u003eIndicators - Type and Location\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"270\"\u003e\n\u003cp\u003e12 LED’s on Front Panel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"397\"\u003e\n\u003cp\u003eSelection\/Status Indication\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"270\"\u003e\n\u003cp\u003e1 – Control Lock\u003c\/p\u003e\n\u003cp\u003e5 – Input\u003c\/p\u003e\n\u003cp\u003e2 – Word length\u003c\/p\u003e\n\u003cp\u003e4 – Sample Rate\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992228\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655471\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685347\"\u003e\u003c\/a\u003eAC POWER REQUIREMENTS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eNominal Input Operating Voltage Range (VAC RMS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e100 – 240V\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFrequency\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e50-60 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003ePower\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e\u0026lt; 0.5 Watts Idle\u003cbr\u003e12 Watts Typical Program\u003cbr\u003e13 Watts Maximum\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eFuses\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e5 x 20 mm (2 required)\u003cbr\u003e0.5 A 250 V Slo-Blo\u003csup\u003e®\u003c\/sup\u003e Type\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eMin\/Max Operating range (VAC RMS)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e90 – 260 VAC\u003cbr\u003e47 – 63 Hz\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992229\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655472\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685348\"\u003e\u003c\/a\u003eDIMENSIONS\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eForm Factor\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e½ Rack Wide, 1 RU High\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDepth behind front panel\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e8.5” (216 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eOverall depth including connectors but without power cord\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.33” (237 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eWidth\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e9.5” (249 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eHeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e1.725” (44.5 mm)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"667\"\u003e\n\u003ch2\u003e\n\u003ca name=\"_Toc405992230\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc401655473\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc338685349\"\u003e\u003c\/a\u003e\u003ca name=\"_Toc111628075\"\u003e\u003c\/a\u003eWEIGHT\u003c\/h2\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDAC3 only\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e3 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eDAC3 with remote control, power cord, extra fuses, and manual\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e4 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"396\"\u003e\n\u003cp\u003eShipping weight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e\n\u003cp\u003e7 lb.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eIMPORTANT FEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSample Rate Display\u003c\/li\u003e\n\u003cli\u003eWord Length Display\u003c\/li\u003e\n\u003cli\u003e5 Digital Inputs\u003c\/li\u003e\n\u003cli\u003e2 Stereo Analog Outputs (1 RCA, 1 XLR)\u003c\/li\u003e\n\u003cli\u003eDigital Pass Through\u003c\/li\u003e\n\u003cli\u003eNative DSD Conversion\u003c\/li\u003e\n\u003cli\u003eControl-lock Switch\u003c\/li\u003e\n\u003cli\u003eAsynchronous USB 2.0\u003c\/li\u003e\n\u003cli\u003eDriverless Asynchronous USB 1.1\u003c\/li\u003e\n\u003cli\u003eBi-Directional 12 Volt Trigger\u003c\/li\u003e\n\u003cli\u003ePower Switch\u003c\/li\u003e\n\u003cli\u003eLow Power Consumption\u003c\/li\u003e\n\u003cli\u003eES9028PRO Converter\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Music Room","offers":[{"title":"Black \/ Rackmount","offer_id":51267883663641,"sku":"2222newBMRK-BL-RA","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Standard","offer_id":51267883696409,"sku":"2222newBMRK-BL-ST","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Rackmount","offer_id":51267883729177,"sku":"2222newBMRK-SI-RA","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Standard","offer_id":51267883761945,"sku":"2222newBMRK-SI-ST","price":1899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Benchmark_DAC3_B_DAC_1.jpg?v=1768991826"},{"product_id":"benchmark-ahb2-power-amplifier","title":"Benchmark AHB2 Power Amplifier","description":"\u003ch2\u003e\u003cspan\u003eBENCHMARK AHB2 POWER AMPLIFIER\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eTHE QUIETEST, CLEANEST AUDIO AMPLIFIER ON THE PLANET\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFrom the first watt to the last watt, no audio power amplifier offers lower noise or lower distortion than the Benchmark AHB2. Benchmark has raised the bar with a revolutionary new amplifier!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e“I measured less distortion and noise in the AHB2 than in any other of the many power amps I've measured over the years.”\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e-Bascom King, BHK Labs\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e“If ever there were a giant-killer of an amp, this is it.”\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\"It is one of the -- if not the -- quietest, most resolving amps I've heard. Time and again, without ever having intended to, I wound up hours deep in listening to the fringes of my music collection, thanks to the AHB2’s reference-level transparency and obscene athleticism.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Hans Wetzel, SoundStage!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\"Benchmark Media Systems' AHB2 is an extraordinary amplifier. Not only does its performance lie at the limits of what is possible for me to reliably test, it also packs high power into a very small package, especially when used in bridged-mono mode. It is truly a high-resolution amplifier.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- John Atkinson, Stereophile\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTRUE HIGH-RESOLUTION PERFORMANCE\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 is the ideal match to the performance limits of High-Resolution Audio (HRA) formats. Benchmark's AHB2 power amplifier delivers musical detail without introducing masking effects from amplifier noise and distortion. The dynamic range of the AHB2 is 132 dB, making it 10 to 30 dB quieter than some of the very best reference-quality power amplifiers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe frequency response of the AHB2 extends beyond 200 kHz. With the AHB2, you will discover previously overlooked nuances, dynamics, and detail in your favorite recordings and experience the full potential of the latest high-resolution 24-bit PCM and 1-bit DSD audio formats.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEXPERIENCE THE EMOTION\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe musical details and emotion captured on today's finest High-Resolution-Audio recordings can only be fully appreciated when every component in the signal chain is capable of true high-resolution performance. Power amplifiers are a weak link in most audio systems. Most power amplifiers are well matched to the limitations of the CD format, but they fall well short of the capabilities of high-resolution formats. In contrast, the revolutionary AHB2 was specifically designed to deliver true high-resolution performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\"Best Stereo Amplifier of 2017 ... masterfully detailed and transparent with spot-on tonality and some serious punch.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Ben Shyman, Home Theater Review\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFULFILLING THE NEED FOR BETTER AMPLIFICATION\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eD\/A conversion technology has outpaced the development of new power amplifiers. This means that the power amplifier has become a limiting factor in many audio systems. For example, the noise and distortion produced by the Benchmark \u003c\/span\u003e\u003cspan\u003eDAC3\u003c\/span\u003e\u003cspan\u003e D\/A converter is 20 to 30 dB lower than that produced by most high-quality power amplifiers. Until now, this meant that the \u003c\/span\u003e\u003cspan\u003eDAC3\u003c\/span\u003e\u003cspan\u003e could not be fully appreciated. Benchmark set out to solve this problem by creating an amplifier that matches the performance of the \u003c\/span\u003e\u003cspan\u003eDAC3\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eA RADICALLY DIFFERENT POWER AMPLIFIER\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWe had to look beyond existing amplifier technologies and explore some new and \u003c\/span\u003e\u003cspan\u003eradical\u003c\/span\u003e\u003cspan\u003e solutions. In our search, we learned of two new patents on a new amplifier technology from THX. This was exactly the technology we needed to build our new amplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 uses the new and revolutionary THX-patented AAA™ technology to virtually eliminate all forms of distortion. This technology uses feed-forward error correction to eliminate the distortion that is normally produced by the output stage.  No other audio amplifier comes close to delivering the clean, quiet, and robust power of the AHB2.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDIFFICULT SPEAKER LOADS ARE HANDLED WITH EASE\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMany loudspeakers have frequencies at which their impedance drops to levels that are much lower than the \"nominal\" impedance. The AHB2 drives difficult phase angles and low impedances with ease. Stereo loads as low as 1.4 Ohms can be cleanly driven to full output levels. Most power amplifiers produce higher levels of distortion when the load impedance decreases. In contrast, the feed-forward error correction system in the AHB2 keeps the output clean when driving difficult loads. The AHB2 produces almost no measurable distortion at any rated load condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn our quest to build the ultimate amplifier, we also focused on frequency response, output noise, drive current, damping factor, and reliability. The result is an amplifier that stands head and shoulders above the competition.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSONIC PURITY THAT SURPASSES CLASS A!\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 is a linear amplifier that surpasses the sonic purity of all class-A amplifiers. No amplifier delivers lower noise or lower distortion. The small, passively cooled chassis, cleanly delivers 480 Watts bridged mono into 6 Ohms, with additional reserves for driving difficult speaker loads. Unlike power-hungry class-A amplifiers, the AHB2 achieves a power efficiency that rivals that of a Class D (switching) power amplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDIFFICULT SPEAKER LOADS ARE HANDLED WITH EASE\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMany loudspeakers have frequencies at which their impedance drops to levels that are much lower than the \"nominal\" impedance. The AHB2 drives difficult phase angles and low impedances with ease. Stereo loads as low as 1.4 Ohms can be cleanly driven to full output levels. Most power amplifiers produce higher levels of distortion when the load impedance decreases. In contrast, the feed-forward error correction system in the AHB2 keeps the output clean when driving difficult loads. The AHB2 produces almost no measurable distortion at any rated load condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHIGH DAMPING FACTOR\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 has a high damping factor that augments its extended low-end to deliver solid, well-controlled bass. This high damping factor also keeps the frequency response absolutely flat while driving speakers with large frequency-dependent impedance variations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHIGH OUTPUT CURRENT\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 can deliver up to 29 A peak to each channel simultaneously. This robust drive current easily handles some of the most demanding loudspeakers. The AHB2 has tightly regulated power supplies that keep the output clean while delivering high current.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDISTORTION IS BELOW AUDIBILITY\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 will never produce audible distortion. In most playback systems, the distortion produced by the AHB2 will never even reach the 0 dB SPL threshold of hearing. This means that the distortion could not be heard, even if it could be played while the music was muted.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 allows you to escape the distortion limitations of classic amplifier topologies and enter the world of high-resolution audio playback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\"I very much enjoyed my time evaluating the Benchmark AHB2 amplifier and can heartily recommend it to those seeking one of the lowest distortion and lowest noise amplifiers on the planet—one that is very musically transparent and easy on the ears to boot.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Frank Alles, Stereo Times\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEXTREME PERFORMANCE OFTEN REQUIRES A RADICAL APPROACH\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 amplifier is radically different than traditional audio amplifiers. Two new THX-patented feed-forward error-correction technologies eliminate most sources of distortion. An unconventional power supply maintains tight regulation and low ripple while minimizing magnetic fields. A low-gain topology optimizes the gain staging between the D\/A converter and the power amplifier while minimizing noise. Sophisticated shielding and star-quad signal distribution provide outstanding immunity to interference. A unique output stage incorporates class-H tracking power supply rails to improve efficiency. The result is that the cool-running AHB2 has a signal to noise ratio of 132 dB while distortion is at or below the measurement limits of the finest test equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eSee John Siau's application note: \u003c\/span\u003e\u003cspan\u003e\"A Radical Approach to Power Amplification\"\u003c\/span\u003e\u003cspan\u003e for more details.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eINTRODUCING THX ACHROMATIC AUDIO AMPLIFIER TECHNOLOGY™\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 is the only amplifier that leverages the patented THX-AAA Technology™. This patented system reduces distortion to vanishingly low levels while enabling several power-saving techniques.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\"The Benchmark AHB2 is a powerful and efficient amplifier with prodigious low levels of noise and distortion. The fact that it is also very musical and non-fatiguing, courtesy of THX’s patented AAA Technology™, is the icing on the cake. Benchmark Media and THX have a lot to be proud of for the development and implementation of the new technology the AHB2 represents.\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e- Frank Alles, Stereo Times\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eBIPOLAR CLASS-AB OUTPUT STAGE\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe AHB2 has a bipolar class-AB output stage that delivers high output current and low noise. The THX-AAA Technology™ provides accurate cancellation of zero-crossing errors, exceeding the performance of the best class-A amplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFEED-FORWARD ERROR CORRECTION\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTraditional class-AB amplifiers generate crossover distortion every time the push-pull output stage crosses 0 volts. This crossover distortion can be especially problematic at low playback levels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn contrast, class-A amplifiers eliminate crossover distortion by keeping all output devices turned on at all times. This brute-force class-A approach solves the crossover distortion problem, but it consumes lots of power while delivering very little to the speakers. The wasted power produces heat, which must be dissipated into the listening space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eClass-A amplifiers eliminate crossover distortion, but they suffer from high power consumption, poor damping, and limited output power. The AHB2 is the first amplifier to virtually eliminate crossover distortion without incurring the undesirable side effects of class-A amplification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTHE IMPORTANCE OF THE FIRST WATT\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca title=\"AHB2 Crossover Distortion Measurements\" href=\"https:\/\/benchmarkmedia.com\/blogs\/application_notes\/131919495-ahb2-crossover-distortion-measurements\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0321\/7609\/files\/1W_Amp_Crossover_Distortion_bf757ae9-2781-4116-852b-951de29a74be_medium.jpg?9280401715234951274\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eDick Olsher once said that \"the first Watt is the most important Watt\". We agree! From the first Watt to the last Watt, the AHB2 shows no evidence of crossover distortion.\u003c\/p\u003e\n\u003cp\u003eIn contrast, all conventional class-AB amplifiers have crossover-distortion artifacts. Traditional class-AB designs attempt to control distortion through the use of feedback. Unfortunately, these feedback systems have a limited ability to reduce the abrupt transients that are caused by output device crossover transitions. Feedback networks attempt to correct errors\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cem\u003eafter\u003c\/em\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethey occur. In contrast, feed-forward networks can prevent errors\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cem\u003ebefore\u003c\/em\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethey occur.\u003c\/p\u003e\n\u003cp\u003eTHX-AAA \u003cem\u003eTechnology™\u003c\/em\u003e includes an ultra-clean low-power error-correction amplifier that runs in parallel with the high-power main amplifier. The correction amplifier actively drives the output while the main output devices transition between push and pull states. Like a class-A amplifier, the AHB2 shows no signs of crossover distortion. The feed-forward system virtually eliminates the errors that would have been produced by the output devices in the main amplifier.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHIGH EFFICIENCY - GREEN NEVER SOUNDED SO GOOD!\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe THX-patented\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003efeed-forward error correction used in the AHB2 is so effective that biasing of the class-AB bipolar output devices can be reduced to unusually low levels. Benchmark has chosen to maintain a small bias current in the output stage, but this bias current is not critical to the distortion performance of the unit. The benefit of low bias current is that very little power is wasted as heat when the amplifier is idle. The AHB2 only draws 12 W when idle, and less than 1\/2 W in standby.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe feed-forward error correction also allows the use of class-H tracking power supply rails without the usual distortion-performance penalty.  These tracking rails significantly improve the overall efficiency of the amplifier while the error correction keeps distortion nearly nonexistent. The AHB2 rivals the efficiency of class-D amplifiers while exceeding the sonic performance of power-hungry class-A designs. Green never sounded so good!\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eINNOVATIVE LOW-NOISE POWER SUPPLY\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eMost high-quality power amplifiers have linear power supplies, large toroidal transformers, and large banks of energy-storage capacitors. These linear supplies are usually unregulated and the capacitors help to remove ripple produced by the audio and by the AC line. In contrast, the AHB2 uses a tightly regulated resonant switching power supply that includes a very fast control loop. This control loop responds to audio-frequency load changes and keeps the supply voltage constant without the use of a large bank of capacitors. This active regulation is much more effective than capacitive energy-storage. Consequently, the peak power output of the AHB2 does not vary with line voltage or audio loading. The power supply rails maintain a constant voltage during audio peaks.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe power supply in the AHB2 switches at frequencies that are well above audible frequencies. This eliminates mechanical hum while significantly reducing the strength of stray magnetic fields. For a given amount of power, magnetic field strength decreases as switching frequency increases. The lower field strengths also provide a significant reduction in size. High-frequency transformers and coils are also much smaller than line-frequency components. This size reduction contributes to the small physical size of the AHB2.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe switching power supply used in the AHB2 is a zero-voltage switching, resonant power converter. This means that the power devices in the supply switch near zero voltage and zero current, eliminating the large switching transients produced by conventional switching power supplies. The power supply in the AHB2\u003c\/span\u003e \u003cspan\u003eis actually much cleaner and quieter than a conventional linear supply. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe power supply In the\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eAHB2\u003c\/span\u003e is well over 90% efficient, much more efficient than linear supplies. This means that little power is lost to heat.\u003c\/p\u003e\n\u003ch2\u003ePASSIVE COOLING\u003c\/h2\u003e\n\u003cp\u003eThe power-efficient AHB2 uses passive heat sinks to maintain cool operation. The AHB2 delivers high power without the need for fans. The unit runs cool, even when playing audio at full output levels. The absence of fan noise is absolutely essential in a high-resolution listening environment.\u003c\/p\u003e\n\u003ch2\u003eLOW-NOISE INPUT AMPLIFIERS\u003c\/h2\u003e\n\u003cp\u003eThe precision balanced inputs on the AHB2 are equipped with low-noise input amplifiers. Benchmark considers balanced inputs essential in a true high-resolution system. If balanced sources are not available, Benchmark sells unbalanced to balanced adapter cables that extend a 3-wire balanced connection back to the unbalanced source connectors. These adapter cables provide many of the advantages of fully balanced interconnects while providing full compatibility with all unbalanced sources.\u003c\/p\u003e\n\u003ch2\u003eLOW GAIN FOR LOW SYSTEM NOISE\u003c\/h2\u003e\n\u003cp\u003eThe AHB2 is a low-gain design. Maximum output is not reached until the balanced inputs reach +22 dBu. This is a much higher signal level than is used at the input of most power amplifiers. High interface signal levels are required to achieve the best possible system signal to noise ratio (SNR). Most power amplifiers have far too much gain and consequently they suffer from poor noise performance. The AHB2 is 10 dB to 30 dB quieter than some of the very best power amplifiers on the market. A rear-panel gain switch can be used to set the AHB2 at higher gain settings if necessary. The low-gain setting is designed to interface directly with Benchmark\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003eDAC3\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003econverters and other professional audio products.\u003c\/p\u003e\n\u003ch2\u003eBULLETPROOF PROTECTION SYSTEM - NO RELAYS\u003c\/h2\u003e\n\u003cp\u003eThe AHB2 has a unique protection system that prevents damage from overloads and short circuits. The protection system monitors output voltage, output current, output distortion, output device SOA (safe operating area), power supply current, power supply voltage, AC line voltage, case temperatures, and power device temperatures. Fault conditions silently mute both output channels in order to protect the speakers and amplifier from damage. The amplifier outputs are also muted while the amplifier is turning on or off.\u003c\/p\u003e\n\u003cp\u003eThe mute circuits are fully electronic.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eThere are no mechanical relays in the mute circuits.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOur tests showed that relays are too slow to protect against certain fault events. Our tests also showed that relay contacts can add significant distortion as they deteriorate with use. The AHB2 is one of very few amplifiers that avoids the use of relays in the output stage. This means that the AHB2 will maintain its rated distortion performance after an unlimited number of power on\/off cycles. \u003c\/p\u003e\n\u003cp\u003eBenchmark's unique distortion monitoring system mutes the amplifier if it is excessively driven into clipping. This system protects tweeters from an overdriven amplifier.\u003c\/p\u003e\n\u003cp\u003eBenchmark's short circuit detection system is fast enough to fully protect the amplifier from events occurring at any output voltage or current. This system detects abnormal loads and instantly mutes the outputs. \u003c\/p\u003e\n\u003cp\u003eA status display shows the exact cause of the fault so that the problem can be corrected.\u003c\/p\u003e\n\u003ch2\u003eSPEAKON OUTPUT CONNECTORS\u003c\/h2\u003e\n\u003cp\u003eThe AHB2 is equipped with high-quality binding posts, and SpeakON output connectors. The high-current SpeakON connectors are designed for heavy-duty commercial sound systems and provide much better electrical connections than binding posts. Benchmark highly recommends the use of the twist-lock SpeakON output connectors. We also highly recommend the use of our top-quality\u003cspan\u003e \u003c\/span\u003eprofessional-grade speaker cables.\u003c\/p\u003e\n\u003ch2\u003eA.H.B.\u003c\/h2\u003e\n\u003cp\u003eThe letters A, H, and B allude to the unique topology of the amplifier's output stage. The AHB2 combines class-AB, and class-H topologies using a feed-forward error correction system.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eBut there is much more to the story -\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe initials A.H.B. can be found on many of the circuit diagrams of Benchmark's early products dating back as far as 1983. These are the initials of Benchmark's founder, Allen H. Burdick. He personally designed many of Benchmark's early products.\u003c\/p\u003e\n\u003cp\u003eAllen had a life-long passion for audio, and he became one of the leading innovators in the pro-audio industry. The AHB2 is named in his memory.\u003c\/p\u003e\n\u003ch3\u003eCONTINUOUS AVERAGE OUTPUT POWER\u003c\/h3\u003e\n\u003cp\u003e\u0026lt; 0.0003 % THD+N\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eat full rated power\u003c\/span\u003e, 20 Hz to 20 kHz\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100 Watts per channel into 8 Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e130\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eWatts per \u003c\/span\u003echannel into 6 Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e190\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eWatts per \u003c\/span\u003echannel into 4 Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e240\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eWatts per \u003c\/span\u003echannel into 3 Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e200 Watts into 16 Ohms, bridged mono\u003c\/li\u003e\n\u003cli\u003e380 Watts into 8 Ohms, bridged mono\u003c\/li\u003e\n\u003cli\u003e480 Watts into 6 Ohms, bridged mono\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAll speakers have variations in input impedance. Select loads based on nominal impedances not minimum impedances. The AHB2 is stable into all loads. The AHB2 is conservatively rated at an output level where THD+N is \u0026lt; 0.0003 % instead of the more typical 1% THD+N. Power at 1% THD will be higher.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eOUTPUT VOLTAGE INTO VARIOUS LOAD IMPEDANCES\u003c\/h3\u003e\n\u003cp\u003e\u0026lt; 0.0003 % THD+N\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eat the following output voltages and load impedances\u003c\/span\u003e, 20 Hz to 20 kHz\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e29.03 dBV, 31.25 dBu, 28.28 Vrms into 8 Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e28.92 dBV, 31.14 dBu, 27.93 Vrms into\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e6 Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e28.81 dBV, 31.03 dBu, 27.57 Vrms into\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e4 Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e28.57 dBV, 30.79 dBu, 26.83 Vrms into\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e3 Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e27.14 dBV, 29.36 dBu, 22.76 Vrms into\u003c\/span\u003e\u003cspan\u003e 2\u003c\/span\u003e Ohms, both channels driven\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e35.05\u003c\/span\u003e\u003cspan\u003e dBV, \u003c\/span\u003e\u003cspan\u003e37.27\u003c\/span\u003e\u003cspan\u003e dBu, \u003c\/span\u003e\u003cspan\u003e56.57\u003c\/span\u003e\u003cspan\u003e Vrms into\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e16 Ohms, bridged mono\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e34.83\u003c\/span\u003e\u003cspan\u003e dBV, \u003c\/span\u003e\u003cspan\u003e37.05\u003c\/span\u003e\u003cspan\u003e dBu, \u003c\/span\u003e\u003cspan\u003e55.14\u003c\/span\u003e\u003cspan\u003e Vrms into\u003c\/span\u003e\u003cspan\u003e 8\u003c\/span\u003e Ohms, bridged mono\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e34.59\u003c\/span\u003e\u003cspan\u003e dBV, \u003c\/span\u003e\u003cspan\u003e36.81\u003c\/span\u003e\u003cspan\u003e dBu, \u003c\/span\u003e\u003cspan\u003e53.67\u003c\/span\u003e\u003cspan\u003e Vrms into\u003c\/span\u003e\u003cspan\u003e 6\u003c\/span\u003e Ohms, bridged mono\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e33.16\u003c\/span\u003e\u003cspan\u003e dBV, \u003c\/span\u003e\u003cspan\u003e35.38\u003c\/span\u003e\u003cspan\u003e dBu, \u003c\/span\u003e\u003cspan\u003e45.52\u003c\/span\u003e\u003cspan\u003e Vrms into\u003c\/span\u003e\u003cspan\u003e 4\u003c\/span\u003e Ohms, bridged mono\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eUse dBV to calculate the peak SPL from your speaker\/amplifier combination. Use the following formula: Amplifier output voltage in dBV + speaker sensitivity at 2.83V - 9 dB. Example: (29.03 dBV at 8 Ohms) + (90 dB SPL @ 2.83V 1m) - 9 dB = 110 dB SPL at 1 meter\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eSNR \u0026amp; DYNAMIC RANGE\u003c\/h3\u003e\n\u003cp\u003eRated output relative to output noise, inputs shorted\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e132 dB A-weighted, Stereo Mode\u003c\/li\u003e\n\u003cli\u003e135 dB A-weighted, Mono Mode\u003c\/li\u003e\n\u003cli\u003e130 dB Unweighted, 20 Hz to 20 kHz, Stereo Mode\u003c\/li\u003e\n\u003cli\u003e133 dB \u003cspan\u003eU\u003c\/span\u003e\u003cspan\u003enweighted, \u003c\/span\u003e\u003cspan\u003e20 Hz to 20 kHz, Mono Mode\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eNOISE VOLTAGE\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eOutput noise voltage, A-weighted, inputs shorted\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e-103 dBV, -101 dBu, 7.1 uVrms, Stereo Mode\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e-100 dBV, -98 dBu, 9.8 uVrms, Mono Mode\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eUse dBV to calculate the SPL of the noise produced by your speaker\/amplifier combination. Use the following formula: Amplifier output noise voltage in dBV + speaker sensitivity at 2.83V - 9 dB. Example: Mono mode driving very high efficiency speakers: (-100 dBV) + (104 dB SPL @ 2.83V 1m) - 9 dB = -5 dB SPL at 1 meter. This means that the system noise will be 5 dB below the threshold of hearing when driving speakers with a very high 104 dB efficiency.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eNOISE RELATIVE TO 2.83 VRMS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOutput noise relative to 2.83 Vrms, A-weighted, inputs shorted\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e-112 dB, Stereo Mode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e-109 dB, Mono Mode\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTHD+N\u003c\/h3\u003e\n\u003cp\u003e1 kHz, 80 kHz LPF, at \u003cspan\u003efull rated output into any rated load\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u0026lt; -118 dB (\u003cspan\u003e\u0026lt; 0.000\u003c\/span\u003e\u003cspan\u003e13\u003c\/span\u003e\u003cspan\u003e%), Stereo Mode\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u0026lt; -118 dB (\u0026lt; 0.00013%), Mono Mode\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTHD\u003c\/h3\u003e\n\u003cp\u003e1 kHz, 20 kHz LPF\u003cspan\u003e, at \u003c\/span\u003e\u003cspan\u003efull rated output into any rated load\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u0026lt; \u003cspan\u003e-119\u003c\/span\u003e\u003cspan\u003e dB (\u003c\/span\u003e\u003cspan\u003e\u0026lt; 0.000\u003c\/span\u003e\u003cspan\u003e11\u003c\/span\u003e\u003cspan\u003e%), Stereo Mode\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u0026lt;\u003cspan\u003e -120 dB (\u003c\/span\u003e\u003cspan\u003e\u0026lt; 0.000\u003c\/span\u003e\u003cspan\u003e10\u003c\/span\u003e\u003cspan\u003e%), Mono Mode\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCROSSTALK\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBetter than -115 dB at 1 kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBetter than -92 dB at 20 kHz\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFREQUENCY RESPONSE\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBetter than 0.1 Hz to 200 kHz, +0\/-3 dB\u003c\/li\u003e\n\u003cli\u003e-0.01 dB at 20 Hz, -0.17 dB at 20 kHz, 8-Ohm Load\u003c\/li\u003e\n\u003cli\u003e-0.23 dB at 20 Hz, -0.32 dB at 20 kHz, 4-Ohm Load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDAMPING FACTOR\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e350 at 20 Hz, 8-Ohms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e254 at 1 kHz, 8-Ohms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e34 at 20 kHz, 8-Ohms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e7 at 200 kHz, 8-Ohms \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMAXIMUM AUDIO OUTPUT CURRENT\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e29 A peak, per channel, both channels driven\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eINPUT SENSITIVITY\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLow-Gain = 22 dBu (9.8 Vrms), Gain = 9.2 dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMid-Gain = 14.2 dBu (4 Vrms), Gain = 17.0 dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-Gain = 8.2 dBu (2 Vrms), Gain = 23 dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUse Mid-Gain or High-Gain settings for unbalanced inputs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnbalanced inputs require RCA to XLRM adapter cables \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eINPUT IMPEDANCE\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e50 k Ohms, normal mode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 M Ohm, common mode\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eINPUT CMRR\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e80 dB at 20 Hz\u003c\/span\u003e\u003cspan\u003e, typical\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e80 dB at 1 kHz\u003c\/span\u003e\u003cspan\u003e, typical\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e65 dB at 20 kHz, typical\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTRIGGER I\/O\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e12 VDC 200 mA current-limited \u003c\/span\u003e\u003cspan\u003eoutput\u003c\/span\u003e\u003cspan\u003e to trigger turn-on of remote devices\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDC input for slaving to remote devices\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput responds to 3.3 V logic and higher, VIL = 1.26 V, VIH = 2.7 V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAbsolute maximum input voltage = 30 VDC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAbsolute minimum input voltage = -0.3 VDC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput Impedance = 20 k Ohms\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePROTECTION CIRCUITS\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFully Electronic, No Relays\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMute Sequencing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDistortion Detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eShort Circuit Detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOver Current Detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOver Temperature Detection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSOA Detection (Output device safe operating area)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDIMENSIONS\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNON-RACK-MOUNT VERSION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e11.04\" W x 3.\u003c\/span\u003e\u003cspan\u003e88\u003c\/span\u003e\u003cspan\u003e\" H x \u003c\/span\u003e\u003cspan\u003e9.34 \" D - Including feet and binding posts\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e11.04\" W x 3.47\u003c\/span\u003e\u003cspan\u003e\" H x 8.33\u003c\/span\u003e\u003cspan\u003e \" D - Excluding feet and connectors\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFaceplate height is 2RU\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRACK-MOUNT VERSION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e19.00\" W x 3.88\" H x 10.62 \" D - Including binding posts, handles and removable feet\u003c\/li\u003e\n\u003cli\u003e19.00\" W x 3.47\" H x 8.33 \" D - Excluding feet and connectors\u003c\/li\u003e\n\u003cli\u003e9.09\" rack depth, including binding posts, excluding cables\u003c\/li\u003e\n\u003cli\u003e11\" rack depth, including cables\u003c\/li\u003e\n\u003cli\u003eFaceplate height is 2RU\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eWEIGHT\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e12.5 lbs., 16 lbs. shipping - Non-rack-mount version\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e13.5 lbs., 17 lbs. shipping - Rack-mount version\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eAC INPUT\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAuto-ranging AC Input\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e100 to 120 VAC +\/- 10%, 8 Amps, 50 - 60 Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e220 to 240 VAC +\/- 10%, 8 Amps, 50 - 60 Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdle Power Consumption = 20 W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandby Power Consumption \u0026lt; 0.5 W\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Music Room","offers":[{"title":"Black \/ Rackmount","offer_id":51267884056857,"sku":"2223newBMRK-BL-RA","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Standard","offer_id":51267884089625,"sku":"2223newBMRK-BL-ST","price":3499.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Rackmount","offer_id":51267884122393,"sku":"2223newBMRK-SI-RA","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Standard","offer_id":51267884155161,"sku":"2223newBMRK-SI-ST","price":3499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Benchmark_AHB2_Power_Amplifier_1.jpg?v=1768991495"}],"url":"https:\/\/tmraudio.com\/collections\/benchmark-media.oembed","provider":"The Music Room","version":"1.0","type":"link"}