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About the II Classic
The Quad II Classic is a two-channel, pure Class A valve integrated amplifier rated at 25 watts per channel into 8 ohms. Its valve complement comprises four KT66 output valves, four 12AX7 valves, and two 6922EH valves. Connectivity includes three line-level inputs, a tape monitor/loop, and one selectable MM/MC phono input. Published specifications include input sensitivities of 275 mV for line-level, 2 mV for MM, and 200 µV for MC, a frequency response of 20 Hz–20 kHz, and total harmonic distortion below 0.6% at 15 W per channel and 700 Hz.
Specifications
Key Specifications
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