{"product_id":"aur-ls17pre2503703","title":"Audio Research LS17 Preamplifier","description":"\u003cp dir=\"ltr\"\u003eAudio Research has been building tube preamplifiers in Minneapolis since 1970, and the LS17 sits in the middle of their LS line — a line-stage-only preamp using a six-tube complement in a fully balanced, differential circuit. Two 6H30 dual-triode tubes per channel, running in a topology that Audio Research has refined across decades of LS-series production. The result is the characteristic ARC presentation: wide soundstage, low noise floor, and a tube character that expresses itself as ease rather than coloration.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eLine stage only — no phono. Balanced XLR and single-ended RCA inputs and outputs. Remote control. The build quality is what you expect from Audio Research: machined chassis, quality parts selection, and construction that holds up over long service intervals. Tubes are user-replaceable and readily available.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eManual included — which matters more with Audio Research than most brands, as proper bias and setup procedure affects performance.\u003cbr\u003e\u003c\/p\u003e\n\u003ch5 dir=\"ltr\"\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(253, 183, 22);\"\u003e$3,500 MSRP\u003c\/span\u003e\n\u003c\/h5\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":48318487822473,"sku":"LS17PRE2503703","price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/4557\/0185\/files\/AudioResearch_26d999f1-958a-484a-9985-a66b0f16acd2.png?v=1789147770","url":"https:\/\/echohifi.com\/products\/aur-ls17pre2503703","provider":"Echo Audio","version":"1.0","type":"link"}