{"product_id":"quad-ii-eighty-valve-mono-power-amplifiers","title":"Quad II - Eighty Valve Mono Power Amplifiers","description":"QII-Eighty\u003cbr\u003e\u003cbr\u003e\n\nDesigned by Tim DeParavicini, the Quad II-Eighty takes inspiration from the original Quad II amplifier. It is an 80-Watt mono power amplifier following in the tradition and philiosophies of Peter Walker. The output section consists of 4 KT88 valves running as two pairs in push pull with the hallmark Quad topology of partial cathode loading in the output transformer.\u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:-\u003cbr\u003e\nInput Sensitivity (nominal): 1V RMS for full output \u003cbr\u003e\nPower Output: 80W RMS\u003cbr\u003e \nOutput Impedance: 4 Ohms or 8 Ohms, selectable \u003cbr\u003e\nTHD @ 80 Watts: 2 x EF86\u003cbr\u003e\n0.5% - 30Hz - 15kHz\u003cbr\u003e\n1.0% - 20 - 20kHz \u003cbr\u003e\nResidual Hum and Noise: Better than -94dB \u003cbr\u003e\nFrequency Response: 10Hz - 30kHz (+0dB, -0.5dB)\u003cbr\u003e\n3Hz - 50kHz (-3dB)\u003cbr\u003e\nDamping Factor: 16 @ 1kHz (referred to 8 Ohms) \u003cbr\u003e\nPower Consumption: 240VA maximum \u003cbr\u003e\nValves: 2 x 6SL7\u003cbr\u003e\n1 x 6SN7\u003cbr\u003e\n4 x KT88 ","brand":"Quad","offers":[{"title":"Default Title","offer_id":57408191168844,"sku":"QUADIIEIGHTY","price":4999.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Quad-II-Eighty-Mono-Lanc-Grey.jpg?v=1777465126","url":"https:\/\/www.stoneaudio.co.uk\/products\/quad-ii-eighty-valve-mono-power-amplifiers","provider":"Stone Audio","version":"1.0","type":"link"}