{"product_id":"cayin-ru7-pre-owned-unit-20261016","title":"Cayin RU7 USB DAC \u0026 Headphone Amplifier — Pre-Owned","description":"\u003c!-- HFL:PDP_COMPACT_V1 --\u003e\n\u003ch2\u003eThis unit\u003c\/h2\u003e\u003cdl\u003e\n\u003cdiv\u003e\n\u003cdt\u003eCondition\u003c\/dt\u003e\n\u003cdd\u003eGrade A — Excellent. Light signs of use; see the actual-item photos for this unit's cosmetic condition.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eFunction\u003c\/dt\u003e\n\u003cdd\u003eWorking normally.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdt\u003eIncluded\u003c\/dt\u003e\n\u003cdd\u003eAll items are as shown in the photos.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\n\u003c!-- HFL:MODEL --\u003e\u003cdiv class=\"hfl-pdp-model\"\u003e\n\u003cdiv\u003e\n\u003ch2\u003eModel \u0026amp; connections\u003c\/h2\u003e\n\u003cp\u003eThe Cayin RU7 is a compact, USB-powered DAC and headphone amplifier built around a fully balanced discrete 1-bit DAC. It provides a portable wired audio connection between a compatible digital source and headphones.\u003c\/p\u003e\n\u003cp\u003eIts All-to-DSD audio bridge offers selectable DSD64, DSD128 and DSD256 processing. Separate 3.5 mm single-ended and 4.4 mm balanced sockets accommodate different headphone connections, with high\/low gain and onboard volume controls.\u003c\/p\u003e\n\u003ch3\u003eBefore you connect\u003c\/h3\u003e\n\u003cp\u003eConnect the USB-C input to a host that supports USB audio and supplies adequate power. Use the correct 3.5 mm single-ended or 4.4 mm balanced headphone plug, select headphone-output mode and start at low volume. Windows playback may require Cayin's USB driver; Lightning devices require a compatible adapter. No unpictured adapter or software licence is promised.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003ctable\u003e\n\u003ccaption\u003eCayin RU7 model specifications\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDAC architecture\u003c\/th\u003e\n\u003ctd\u003eFully balanced discrete 1-bit DAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDigital input\u003c\/th\u003e\n\u003ctd\u003eUSB Type-C, wired USB audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAll-to-DSD modes\u003c\/th\u003e\n\u003ctd\u003eDSD64, DSD128 and DSD256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeadphone outputs\u003c\/th\u003e\n\u003ctd\u003e3.5 mm single-ended and 4.4 mm balanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGain and control\u003c\/th\u003e\n\u003ctd\u003eHigh\/low gain; onboard volume control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eUSB host-powered; no internal battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cayin","offers":[{"title":"Default Title","offer_id":67625513713878,"sku":"HFL-RU7-U20261016-01","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/7445\/9862\/files\/57_865e170f-f201-4da2-9956-6a2e526147a9.png?v=1792167061","url":"https:\/\/hifiloop.com\/ja\/products\/cayin-ru7-pre-owned-unit-20261016","provider":"HiFiLoop","version":"1.0","type":"link"}