Quad II - Eighty Valve Mono Power Amplifiers

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QII-Eighty Designed 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. Technical Specifications:- Input Sensitivity (nominal): 1V RMS for full output Power Output: 80W RMS Output Impedance: 4 Ohms or 8 Ohms, selectable THD @ 80 Watts: 2 x EF86 0.5% - 30Hz - 15kHz 1.0% - 20 - 20kHz Residual Hum and Noise: Better than -94dB Frequency Response: 10Hz - 30kHz (+0dB, -0.5dB) 3Hz - 50kHz (-3dB) Damping Factor: 16 @ 1kHz (referred to 8 Ohms) Power Consumption: 240VA maximum Valves: 2 x 6SL7 1 x 6SN7 4 x KT88 Show more