{"product_id":"audio-research-i55-integrated-amplifier","title":"Audio Research I\/55 Integrated Amplifier","description":"\u003cp\u003eThe I\/55 imports the functionality of the I\/70 into a chassis that maintains the look and power output of the I\/50 it succeeds. Its all-tube amplification circuit uses two matched pairs of 6550 power tubes fed by 6922 input tubes to deliver 50 watts per channel, now with auto-bias to keep the output tubes in their optimal range for life. Two LexieTubes display input selection and volume, an active preamplifier section feeds stereo preamp outputs, the headphone output is driven by the 6550 output tubes, and optional cards add an AKM Velvet Sound DAC or MM\/MC phono stage.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e16.5 in W x 7.25 in H x 13.5 in D, 40 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eTwo LexieTubes for input and volume\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eInputs\u003c\/th\u003e\n\u003ctd\u003e4 balanced, 4 single-ended; optional DAC and MM\/MC phono cards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eOutput taps\u003c\/th\u003e\n\u003ctd\u003e8 and 4 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003ePower output\u003c\/th\u003e\n\u003ctd\u003e50 watts per channel continuous, 20Hz to 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eTube biasing\u003c\/th\u003e\n\u003ctd\u003eAuto-bias\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eTube complement\u003c\/th\u003e\n\u003ctd\u003eTwo matched pairs 6550WE output, three 6922 (one input, two driver)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOptions \u0026amp; Upgrades\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003eDAC card\u003cbr\u003e\u003csmall\u003eAKM Velvet Sound DAC; user-installable\u003c\/small\u003e\n\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$1,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003eMM\/MC phono card\u003cbr\u003e\u003csmall\u003eUser-installable\u003c\/small\u003e\n\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$1,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em;font-weight:400\"\u003eBoth DAC and phono cards, factory preinstalled\u003c\/th\u003e\n\u003ctd style=\"white-space:nowrap\"\u003e+$1,500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003csmall\u003ePrices shown are for the base configuration. Ask us about options and factory upgrades when you visit.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall or visit the showroom about availability.\u003c\/strong\u003e Contact our team for pricing, a demonstration, or system design — \u003ca href=\"\/pages\/contact\"\u003eget in touch\u003c\/a\u003e.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":50417943478465,"sku":null,"price":6950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0869\/8340\/9857\/files\/Product-grid-I-55_905b1a8c-8eb7-4ed8-b7ac-f5eaf8b3816e.jpg?v=1785024466","url":"https:\/\/soundsanctuaryaustin.com\/products\/audio-research-i55-integrated-amplifier","provider":"Sound Sanctuary Austin","version":"1.0","type":"link"}