{"product_id":"hifi-rose-ra180-reference-integrated-amplifier","title":"HiFi Rose RA180 Reference Integrated Amplifier","description":"\u003ch1 class=\"page-title\"\u003eHiFi Rose RA180 Reference Integrated Amplifier\u003c\/h1\u003e\n\u003cdiv class=\"product attribute overview\"\u003e\n\u003cp data-title-rewrite-container=\"\"\u003eReference Integrated Amplifier and Preamp w\/ GaN FET Class AD topology, Balanced Power Supply, MM\/MC Phono stages Built-in, Variable EQ Tone Control, Level Meters, Motorized Remote Control via IR, Subwoofer Out \u0026amp; Active Crossover\u003c\/p\u003e\n\u003cdiv class=\"col_narrow\"\u003e\n\u003ch3 class=\"hp-title\"\u003eReference Integrated Amplification Evolved\u003c\/h3\u003e\n\u003ch2 class=\"subhead\"\u003eNew Concept Advanced Class D Amplifier\u003c\/h2\u003e\n\u003cp\u003eAmplifiers have changed from Class A to AB and Class D. The high heat and low efficiency of Class A required a new design, so Class AB was developed. However, Class D has even higher efficiency and higher output than Class AB.\u003cbr\u003e \u003cbr\u003eIt also has dramatically improved the Signal-to-Noise ratio and Total Harmonic Distortion Characteristics over Class A and AB.\u003cbr\u003e \u003cbr\u003eHowever, despite these advantages, due to the limitations of digital circuits, the sound quality has been evaluated as poor compared to A\/AB.\u003cbr\u003e \u003cbr\u003eThe GaN (Gallium Nitride) Advanced Class D amplifier developed by HiFi ROSE is an innovative new product. Dramatically improving on the problems of Class D. Harmonized Design by upper-class frame consists of an aluminum body with corner volume knob, power button, and wide view touch screen makes its whole shape exceptional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col_full\"\u003e\u003cimg height=\"379\" width=\"1200\" alt=\"Close up shot of the front panel of HiFi Rose RA180 Reference Integrated Amplifier\" src=\"https:\/\/www.audioadvice.com\/pub\/media\/wysiwyg\/RA180.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col_narrow\"\u003e\n\u003ch3 class=\"hp-title\"\u003eNext-gen GaN FET Advanced Class D Amp\u003c\/h3\u003e\n\u003cp\u003eClass D amplifiers are theoretically completely linear at 0% distortion and 100% power efficient. It is a topology that provides the output, and to implement it, speed and accuracy must be a prerequisite. However, previous products exhibited non-linearity due to the limitation of the switching element (Silicon FET).\u003cbr\u003e \u003cbr\u003eIt was weak compared to Class A\/AB in this area, which produced a soft and natural sound. It was a costly limitation.\u003cbr\u003e \u003cbr\u003eIn the HiFi ROSE RA180, this problem has been solved by new materials. Instead of low-quality Silicon FET chips, the Dead-Time was improved to 10 by applying Gallium Nitride FET chips.\u003cbr\u003e \u003cbr\u003eThis linearity pushes the limit of Class D while being soft and producing a natural sound.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 class=\"subhead\"\u003eMulti-Output Configuration\u003c\/h2\u003e\n\u003cp\u003eEach channel of the RA180 amplifier is equipped with an AMP module specialized for stable bass and balance and a module specialized for soft treble and super tweeter area with 2 modules.\u003cbr\u003e \u003cbr\u003eEach AMP module supports 200W (8 Ohms) and can output up to 400W per channel. There are 2 independent modules that divide the high and low frequencies respectively, so that the speaker and, when connected, Bi-Amping has a driving force that is increased without being affected by the back electromotive force.\u003cbr\u003e \u003cbr\u003eBTL Mode combines the output of two independent modules to produce a thicker and more balanced sound.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 class=\"subhead\"\u003eTop-end Designed to Sing\u003c\/h2\u003e\n\u003cp\u003eThe human hearing range is known to have an upper limit of 15 - 20KHz. So why would it be necessary to build an amp with a higher range?\u003c\/p\u003e\n\u003cp\u003eUsing modern research and experience it's now perhaps a good time to question this belief. Temporary high treble can extend well beyond 20KHz. For example, the trumpet has a frequency response that expands up to 100KHz.\u003c\/p\u003e\n\u003cp\u003eThe ROSE RA180 has an output range of 20Hz - 50Khz, 100Khz@-3dB, 200KHz @-6dB. The frequency response range is designed to be wide so that your high-resolution sources are not filtered out. While this range may in fact be beyond our range of human hearing, RA180 faithfully reproduces the subtle nuances of human voices and other instruments. The depth and width of the RA180's sound and the realism will contribute to the emotional expressions of the artists.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col_full\"\u003e\u003cimg alt=\"Close up shot of the internal components inside the HiFi Rose RA180 Reference Integrated Amplifier and Preamp.\" src=\"https:\/\/www.audioadvice.com\/pub\/media\/wysiwyg\/RA180-internals.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col_narrow\"\u003e\n\u003ch3 class=\"hp-title\"\u003eAbsolute Pure Sound.\u003c\/h3\u003e\n\u003ch2 class=\"subhead\"\u003eBalanced Power Supply\u003c\/h2\u003e\n\u003cp\u003eThe power supply circuit was developed exclusively for the RA180. It was designed with 4th generation SiC FET technology to provide high performance and high efficiency compared to typical Si FET.\u003cbr\u003e \u003cbr\u003eIn addition, ROSE has developed a 2.5 KW Power Factor Circuit (PFC) and a large-capacity capacitor. This is designed to allow the unit to be unaffected by sudden load fluctuations. The power unit is developed to support a damping factor of 200 and a total of 1000W of power.\u003cbr\u003e \u003cbr\u003eAs the heart of the amplifier, it is designed to produce powerful bass and soft treble faithfully.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 class=\"subhead\"\u003ePhono Amp with Variable EQ\u003c\/h2\u003e\n\u003cp\u003eThe Phono amplifier section on the RA180 has the goal of accurately reproducing the intent of the artist.\u003cbr\u003e \u003cbr\u003eIt is designed to support a variety of record players with mid and low-frequency bass turnover and high-frequency roll-off adjustment.\u003cbr\u003e \u003cbr\u003eAmplification of the very weak audio signal is captured from the cartridge and processed without coloring and faithfully keeping to the original sound.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col_full\"\u003e\u003cimg alt=\"Front panel of HiFi Rose RA180 Reference Integrated Amp with all the features spelled out on each button and knob.\" src=\"https:\/\/www.audioadvice.com\/pub\/media\/wysiwyg\/RA-180_front.png\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col_full\"\u003e\u003cimg height=\"500\" width=\"1200\" alt=\"Explanation of each control on the RA180 Reference Integrated Amplifier\" src=\"https:\/\/www.audioadvice.com\/pub\/media\/wysiwyg\/specs-4.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col_full\"\u003e\u003cimg height=\"379\" width=\"1200\" alt=\"Rear view of the back panel on the RA180 Reference Integrated Amplifier\" src=\"https:\/\/www.audioadvice.com\/pub\/media\/wysiwyg\/RA180-3.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col_full\"\u003e\u003cimg height=\"379\" width=\"1200\" alt=\"Explanation of specs for HiFi Rose RA180 Reference Integrated Amp with all the features spelled out on each button and knob.\" src=\"https:\/\/www.audioadvice.com\/pub\/media\/wysiwyg\/specs-3.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col_full\"\u003e \u003cstrong\u003ePOWER:\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col_full\"\u003e\n\u003cdiv class=\"specifications-container\"\u003e\n\u003cdiv class=\"col_narrow\"\u003e\n\u003cul\u003e\n\u003cli\u003eOUTPUT: SMPS (800W) ( Maximum Power: 1,100W )\u003c\/li\u003e\n\u003cli\u003eVOLTAGE: AC100-240V, 50\/60Hz (Standby Mode Power Consumption \u0026lt;0.5W)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAMPLIFIER OUTPUT:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4 Ω: 200W x 4ch (800W)\u003c\/li\u003e\n\u003cli\u003e8 Ω: 200W x 4ch (880W)\u003c\/li\u003e\n\u003cli\u003eBTL Mode On: 400W x 2ch (400W)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eINPUT SENSITIVITY:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBALANCE INPUT: 2,000mV (200W x 4ch)\u003c\/li\u003e\n\u003cli\u003eUNBALANCED (Lline 1,2,3) INPUT: 1,000mV ( 200W x 4ch)\u003c\/li\u003e\n\u003cli\u003ePHONO (MM\/MC) INPUT: 5mV \/ 0.5mV (200W x 4ch )\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIMPEDANCE INPUT:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBALANCE INPUT: 44kΩ\u003c\/li\u003e\n\u003cli\u003eUNBALANCE (Line 1,2,3) INPUT: 47kΩ\u003c\/li\u003e\n\u003cli\u003ePHONO (MM\/MC) INPUT:  47kΩ\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIMPEDANCE OUTPUT:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSPEAKER OUTPUT: 53MΩ ( 200W X 4ch )\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBANDWIDTH (0dBr+\/-3dB\/8Ω):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSPEAKER OUTPUT: 10HZ - 100KHZ ( 100W X 2ch )\u003c\/li\u003e\n\u003cli\u003eH\/F SPEAKER OUTPUT: 10HZ - 100KHZ ( 100W X 2ch )\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFREQUENCY RESPONSE (1W, 0+\/-1dB\/8Ω):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSPEAKER OUTPUT: 10HZ - 100KHZ ( 100W X 2ch )\u003c\/li\u003e\n\u003cli\u003eH\/F SPEAKER OUTPUT: 10HZ - 100KHZ ( 100W X 2ch )\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTOTAL HARMONIC DISTORTION:\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBALANCED \u0026amp; UNBALANCED (Line 1,2,3) INPUT: 0.006%(50W) ( 200W X 4ch)\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSIGNAL TO NOISE RATIO:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBALANCED, UNBALANCED \/ PHONO MM: 108dB \/ 106dB \/ 79dB (MM) ( 200W x 4ch)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDAMPING FACTOR:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSPEAKER \u0026amp; H\/F SPEAKER OUTPUT: \u0026gt;150 ( 200W X 2ch )\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSUBSONIC FILTER WITH ON\/OFF SWITCH:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3dB: 50Hz 9 ( 1W x 4ch )\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTONE CONTROL WITH ON\/OFF SWITCH:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBASS (100Hz) \/ TREBLE (10KHz):+\/-15dB ( 1W x 2ch [Speaker Output] )\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eX-OVER WITH ON\/OFF SWITCH:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHPF (-3dB): 600Hz - 6KHz ( 1W x 2ch [H\/F Speaker Output] )\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eANALOG AUDIO INPUTS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x PHONO Unbalanced RCA\u003c\/li\u003e\n\u003cli\u003e3 x LINE Unbalanced RCA\u003c\/li\u003e\n\u003cli\u003e1 x Balanced XLR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eANALOG AUDIO OUTPUTS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e1 x SUBWOOFER OUT\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePHONO: \u003c\/strong\u003eMM\/MC with variable EQ\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTURNOVER (FLAT):\u003c\/li\u003e\n\u003cli\u003e300Hz (+7.7dB@100Hz)\u003c\/li\u003e\n\u003cli\u003e400Hz (+11.7DB@100HZ)\u003c\/li\u003e\n\u003cli\u003e500Hz (+13dB@100Hz) [RIAA]\u003c\/li\u003e\n\u003cli\u003e700Hz (+14.5dB@100Hz)\u003c\/li\u003e\n\u003cli\u003eROLL-OFF (FLAT):\u003c\/li\u003e\n\u003cli\u003e1.6KHz (-16dB@10kHz)\u003c\/li\u003e\n\u003cli\u003e2.1KHz (-13.7dB@10kHz) [RIAA]\u003c\/li\u003e\n\u003cli\u003e3.18KHz (-11dB@10kHz)\u003c\/li\u003e\n\u003cli\u003e3.4KHz (-8dB@10kHz)\u003c\/li\u003e\n\u003cli\u003e6.36KHz (-5dB@10kHz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAUDIO IN\/OUT SETTING:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTRIGGER: 3.3 V ~12V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAUDIO CONTROL:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3-Band EQ w\/ adjustable gain\u003c\/li\u003e\n\u003cli\u003ePure Direct\u003c\/li\u003e\n\u003cli\u003eSub Sonic Filter\u003c\/li\u003e\n\u003cli\u003eA\/B Speaker Selector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCONTROL:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBluetooth Remote Controller (included)\u003c\/li\u003e\n\u003cli\u003eIR INPUT: 38 kHz Infrared Ray (Operating Distance within 10 m)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDESIGN\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBODY: High-purity aluminum\u003c\/li\u003e\n\u003cli\u003eDIMENSIONS (L x W x H): 16.9\" x 12.4\" x 4.8\"\u003c\/li\u003e\n\u003cli\u003eDIMENSIONS with FEET: 16.9\" x 13.7 x 5.11 \u003c\/li\u003e\n\u003cli\u003eWEIGHT: 37 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eACCESSORIES\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord x 1\u003c\/li\u003e\n\u003cli\u003eBluetooth Remote controller x 1\u003c\/li\u003e\n\u003cli\u003eQuick Start Guide x 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"The Music Room","offers":[{"title":"Default Title","offer_id":51268147708185,"sku":"2185newROSE","price":6995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/HiFi_Rose_RA180_Reference_Integrated_Amplifier_1.jpg?v=1767762451","url":"https:\/\/tmraudio.com\/products\/hifi-rose-ra180-reference-integrated-amplifier","provider":"The Music Room","version":"1.0","type":"link"}