{"product_id":"audio-research-reference-20","title":"Audio Research - Reference 20","description":"\u003cp\u003e\u003cstrong\u003eAudio Research - Reference 20\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLine-Stage Preamplifier\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe New Reference\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Reference 20 is the culmination of a singular objective: to advance beyond the established limits of preamplifier architecture and redefine what is possible in line-stage performance.\u003c\/p\u003e\n\u003cp\u003eDeveloped without constraint, it represents a complete rethinking of the line-stage preamplifier. Every critical element—mechanical, electrical, and material—has been reconsidered in pursuit of one outcome: absolute sonic transparency. The result, in keeping with Audio Research tradition, is consistent with achievements of the SP-3 and Reference 1 before it: a new reference, not only for the Audio Research, but for the category itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNew Architecture\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt the heart of the Reference 20 is an entirely new platform engineered to eliminate sources of distortion previously accepted as unavoidable.\u003c\/p\u003e\n\u003cp\u003eThe traditional stamped chassis has been replaced with a sophisticated multi-metal, layered construction designed to disperse and control resonant energy. Critical circuits are mounted on custom suspended, mass-loaded boards that further isolate the signal path from mechanical influence.\u003c\/p\u003e\n\u003cp\u003eThis structural approach is not cosmetic but rather foundational. By addressing resonance at every level, the Reference 20 preserves low-level information and spatial detail with unprecedented focus and articulation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL SPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"empty-space empty-quart\"\u003e\n\u003cspan class=\"empty-space-inner\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"uncode_text_column\"\u003e\n\u003cdiv class=\"wptb-root wptb-table-135467 wptb-style-isolation\" data-table-id=\"135467\" style=\"margin-left: auto !important; margin-right: auto !important; max-width: 100%;\" data-last-device=\"desktop\"\u003e\n\u003cdiv class=\"wptb-table-wrapper\" data-table-id=\"135467\"\u003e\n\u003cdiv class=\"wptb-table-container\" style=\"overflow-x: auto; overflow-y: hidden;\"\u003e\n\u003ctable class=\"wptb-table wptb-has-link-color\" style=\"min-width: 320px; border: 1px rgb(229, 229, 229); border-collapse: collapse; border-spacing: 3px 3px; --wptb-link-color: #000000; --wptb-inner-border: 1px rgb(229, #e5e5e5; --wptb-inner-radius: 0px;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol class=\"\" style=\"width: 167px; min-width: 167px;\"\u003e\n\u003ccol class=\"\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"0\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eFrequency Response\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"0\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003e1.5Hz to 24kHz at -1dB, 120kHz at -3dB\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"1\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eTHD+Noise\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"1\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003e0.07% Balanced, 0.03% Single Ended\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"2\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eGain - Main output\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"2\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003e15dB Balanced output, 9dB Single Ended output\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"3\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eInput Impedance\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"3\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003e50K ohms Balanced, 25K ohms Single Ended\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"4\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eOutput Impedance\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"4\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003e600 ohms Balanced, 300 ohms Single Ended Main Out\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003e200 ohms Balanced, 100 ohms Single Ended Sub Out\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"5\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eOutput Polarity\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"5\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003eNon-inverting\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"6\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eTube Complement\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"6\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003e(6)-6H30P dual triodes Audio, (1) 6550 and (1) 6H30 Power supply\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"7\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003ePower Requirements\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"7\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003e100-135VAC 60Hz (200-250VAC 50\/60Hz) 147 watts maximum.\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003eStandby: 4.3 watts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"8\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eDimensions\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"8\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #eeeeee; vertical-align: middle; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003eWidth 19” (48.26 cm)\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003eHeight 8 1\/8” (20.64 cm)\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003eDepth 19 1\/16” (48.42 cm) including handles and rear bumpers\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"wptb-row\"\u003e\n\u003ctd class=\"wptb-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"9\" data-col=\"0\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: right;\"\u003eWeight\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd class=\"wptb-cell wptb-row-ending-cell\" colspan=\"1\" rowspan=\"1\" data-row=\"9\" data-col=\"1\" style=\"padding: 7px; border: 1px solid rgb(229, 229, 229); background: #ffffff; color: #000000; font-size: 15px;\"\u003e\n\u003cdiv class=\"wptb-cell-content\"\u003e\n\u003cdiv class=\"wptb-text-container\" style=\"color: #4a4a4a; font-size: 11px; padding: 0px; margin: 0px;\"\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: justify;\"\u003e62.5 lbs. (28.35 kg) Net; 78 lbs. (35.38 kg) Shipping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Audio Research","offers":[{"title":"Black","offer_id":47841704378524,"sku":null,"price":40800.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":47841704411292,"sku":null,"price":40800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/0595\/9324\/files\/Ref20-black-faceplate-crop-1500.jpg?v=1791407641","url":"https:\/\/thesourceav.com\/products\/audio-research-reference-20","provider":"The Source AV","version":"1.0","type":"link"}