{"product_id":"uns-refpre-ch","title":"Unison Research Reference Pre Dual Mono Valve Preamplifier Cherry","description":"\u003cp\u003eAfter we completed the design of our flagship Reference monoblock power amplifiers, we created a need for a preamplifier with the same features and sound quality. We came up with a preamplifier design worthy of that series, the Reference PRE. Made with the care and attention detail that characterizes all products from Unison Research, the Reference PRE preamplifier is truly another milestone in audio reproduction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: valve preamplifier, dual mono, two chassis\u003c\/li\u003e\n\u003cli\u003eValves: 2 x 300B, 2 x ECC82, 4 x ECC83, 6 x 6C45P\u003c\/li\u003e\n\u003cli\u003ePhono Valves: 4 x 6C45P, 2 x ECC83\u003c\/li\u003e\n\u003cli\u003eClass: pure class A\u003c\/li\u003e\n\u003cli\u003eInputs: 4 RCA, 2 XLR, 1 tape, 2 independent phono\u003c\/li\u003e\n\u003cli\u003eOutput: 1 RCA, 1 XLR, 1 tape ( active ), 1 subwoofer (active ), Power-on link for REFERENCE Power\u003c\/li\u003e\n\u003cli\u003eOutput impedance : 500 ohm\u003c\/li\u003e\n\u003cli\u003eInput impedance : 47 kOhm\u003c\/li\u003e\n\u003cli\u003eInput impedance for Phono: Selectable resistance and capacitance\u003c\/li\u003e\n\u003cli\u003ePre Gain: 20dB\u003c\/li\u003e\n\u003cli\u003ePhono Gain: 45 – 55 dB\u003c\/li\u003e\n\u003cli\u003eRIAA: passive ± 0.2 dB\u003c\/li\u003e\n\u003cli\u003eBandwidth : 10Hz – \u0026gt; 100KHz @ – 0.3dB\u003c\/li\u003e\n\u003cli\u003eNegative Feedback: 15 dB line, 0 db Phono\u003c\/li\u003e\n\u003cli\u003eDistortion: 0.1%\u003c\/li\u003e\n\u003cli\u003ePower consumption : 320 W max\u003c\/li\u003e\n\u003cli\u003eDimensions: 45 cm x 56 cm x H 22 cm\u003c\/li\u003e\n\u003cli\u003eNet Weight: 30 Kg \/ 66 lb\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Unison Research","offers":[{"title":"Default Title","offer_id":59018993631567,"sku":"UNS.REFPRE.CH","price":19500.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/1663\/9311\/files\/unison-research-reference-pre-ceresna-image1-big_ies14112969.jpg?v=1791289504","url":"https:\/\/music1st.eu\/products\/uns-refpre-ch","provider":"MUSIC1ST","version":"1.0","type":"link"}