{"product_id":"audio-research-ls-3-preamplifier","title":"Audio Research LS-3 Preamplifier","description":"\u003cp\u003eThe LS-3 is a solid-state preamplifier from Audio Research's dedicated solid-state engineering team, externally identical to the LS-2 yet built on a fully balanced differential JFET input stage, a bipolar-transistor voltage amplifier and Class-A output stages. The signal path is fully dual-mono, with separate power transformers per channel, a zero-gain cascaded voltage reference and linear power supplies for low noise and outstanding dynamics. The all-aluminum chassis is shared with the LS-2, and a touch-screen display carries the font of the Reference GhostMeters for a cohesive look.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eArchitecture\u003c\/th\u003e\n\u003ctd\u003eDual mono with separate power transformers per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e19 in W x 7 in H x 17.5 in D, 33 lbs net\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e10Hz to 40kHz (+\/-0dB at rated output, balanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eGain\u003c\/th\u003e\n\u003ctd\u003e20dB balanced and single-ended\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\u003eBalanced XLR and RCA; optional user-installable 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\"\u003eTHD+Noise\u003c\/th\u003e\n\u003ctd\u003eLess than 0.007% at 2V RMS balanced output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding-right:1.5em\"\u003eTopology\u003c\/th\u003e\n\u003ctd\u003eSolid-state, differential JFET input, Class-A output stages\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\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\"\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":50417943052481,"sku":null,"price":7450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0869\/8340\/9857\/files\/Product-grid-LS-3.jpg?v=1785024454","url":"https:\/\/soundsanctuaryaustin.com\/products\/audio-research-ls-3-preamplifier","provider":"Sound Sanctuary Austin","version":"1.0","type":"link"}