{"product_id":"chord-alto-professional-headphone-and-speaker-amplifier","title":"Chord Alto Professional Headphone and Speaker Amplifier","description":"\u003ch2\u003e\u003cspan style=\"font-weight: 400;\"\u003eChord Alto Professional Headphone Amplifier Key Features: \u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e50 W into 4 Ω bookshelf speaker amplifier\u003c\/li\u003e\n\u003cli\u003eDesktop size\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eXLR through or signal passthrough\u003c\/li\u003e\n\u003cli\u003eTrickle-down ULTIMA tech\u003c\/li\u003e\n\u003cli\u003eDual feed-forward error correction\u003c\/li\u003e\n\u003cli\u003eFully balanced system\u003c\/li\u003e\n\u003cli\u003eHF switch mode power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan style=\"font-weight: 400;\"\u003eProduct Description: \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"647\" data-start=\"316\"\u003eThe Alto is a meticulously engineered headphone and nearfield monitor amplifier, capable of driving up to four pairs of headphones or smaller loudspeakers. It is also our first product to feature a 4.4 mm Pentaconn TRRRS output (pseudo balanced), reflecting the growing popularity of balanced transmission in high-end headphones.\u003c\/p\u003e\n\u003cp data-end=\"945\" data-start=\"649\"\u003eEquipped with four fascia-mounted headphone outputs, the Alto utilizes powered ULTIMA technology to deliver exceptional clarity. Outputs include one 3.5 mm, two 6.35 mm (1\/4-inch), and a single 4.4 mm Pentaconn, enabling effortless A\/B comparisons and simultaneous listening for multiple users.\u003c\/p\u003e\n\u003cp data-end=\"1204\" data-start=\"947\"\u003eFor loudspeakers, the Alto delivers 25 watts into 8 ohms (50 watts into 4 ohms) with the transparency, speed, and low distortion that ULTIMA amplifiers are known for. Stereo banana plug outputs on the rear panel accommodate nearly all speaker connections.\u003c\/p\u003e\n\u003cp data-end=\"1370\" data-start=\"1206\"\u003eThe ULTIMA topology incorporates dual-feed-forward error-correction technology, continuously monitoring and correcting signals before they reach the output stage.\u003c\/p\u003e\n\u003cp data-end=\"1515\" data-start=\"1372\"\u003eCompact yet powerful, the Alto is slightly larger than the A5, making it ideal for desktop setups, living spaces, or dedicated hi-fi systems.\u003cspan style=\"font-weight: 400;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-weight: 400;\"\u003eSpecifications:\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable width=\"474\"\u003e\n\u003ctbody\u003e\n\u003ctr data-end=\"189\" data-start=\"146\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"172\" data-start=\"146\" width=\"185\"\u003eOutput power (Speakers)\u003c\/td\u003e\n\u003ctd data-end=\"189\" data-start=\"172\" data-col-size=\"md\" width=\"289\"\u003e50 W into 4 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"240\" data-start=\"190\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"218\" data-start=\"190\"\u003eOutput power (Headphones)\u003c\/td\u003e\n\u003ctd data-end=\"240\" data-start=\"218\" data-col-size=\"md\"\u003e2250 mW into 100 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"278\" data-start=\"241\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"258\" data-start=\"241\"\u003eTHD (Speakers)\u003c\/td\u003e\n\u003ctd data-end=\"278\" data-start=\"258\" data-col-size=\"md\"\u003e0.003 % into 4 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"320\" data-start=\"279\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"298\" data-start=\"279\"\u003eTHD (Headphones)\u003c\/td\u003e\n\u003ctd data-end=\"320\" data-start=\"298\" data-col-size=\"md\"\u003e0.001 % into 100 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"349\" data-start=\"321\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"339\" data-start=\"321\"\u003eSignal-to-noise\u003c\/td\u003e\n\u003ctd data-end=\"349\" data-start=\"339\" data-col-size=\"md\"\u003e120 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"388\" data-start=\"350\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"371\" data-start=\"350\"\u003eFrequency response\u003c\/td\u003e\n\u003ctd data-end=\"388\" data-start=\"371\" data-col-size=\"md\"\u003e6 Hz – 60 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"424\" data-start=\"389\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"413\" data-start=\"389\"\u003eInput maximum voltage\u003c\/td\u003e\n\u003ctd data-end=\"424\" data-start=\"413\" data-col-size=\"md\"\u003e6 V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"447\" data-start=\"425\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"437\" data-start=\"425\"\u003eCrosstalk\u003c\/td\u003e\n\u003ctd data-end=\"447\" data-start=\"437\" data-col-size=\"md\"\u003e-95 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"494\" data-start=\"448\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"473\" data-start=\"448\"\u003eOutput maximum voltage\u003c\/td\u003e\n\u003ctd data-end=\"494\" data-start=\"473\" data-col-size=\"md\"\u003e15 V RMS into 8 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"545\" data-start=\"495\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"515\" data-start=\"495\"\u003eOperation voltage\u003c\/td\u003e\n\u003ctd data-end=\"545\" data-start=\"515\" data-col-size=\"md\"\u003e80-250 V AC auto-switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"604\" data-start=\"546\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"559\" data-start=\"546\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-end=\"604\" data-start=\"559\" data-col-size=\"md\"\u003eLength 215 mm, Width 200 mm, Height 57 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"630\" data-start=\"605\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"618\" data-start=\"605\"\u003eNet weight\u003c\/td\u003e\n\u003ctd data-end=\"630\" data-start=\"618\" data-col-size=\"md\"\u003e1946 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"The Music Room","offers":[{"title":"Default Title","offer_id":51888537469209,"sku":"3594newCHRD","price":4320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Untitled_design_-_2025-12-17T133308.994__58597.jpg?v=1775488715","url":"https:\/\/tmraudio.com\/products\/chord-alto-professional-headphone-and-speaker-amplifier","provider":"The Music Room","version":"1.0","type":"link"}