Quad QII-Classic Mono Power Amplifiers (Pair) A Timeless Design Reimagined The Quad QII-Classic Mono Power Amplifiers (pair) pay homage to Peter Walker's original 1953 design, renowned for its innovative cathode-coupled circuit. This design emulates the performance of triode operation while maintaining the size and efficiency characteristics of pentode operation. The result is a monophonic amplifier that delivers a sweet, refined, and dynamic sound signature. Classic Valve Configuration Each amplifier utilizes a classic valve configuration: 2 x EF86 input valves, 2 x KT66 output valves, and 1 x GZ34 rectifier valve. Operating in pure Class A, the QII-Classic produces approximately 15 watts per channel, offering ample power for most modern loudspeakers when paired appropriately. Aesthetic and Build Quality The QII-Classic features a robust build with a sleek Lancaster Grey finish. Its compact dimensions and classic design elements make it a visually appealing addition to any audiophile's setup. Each amplifier is supplied in matched pairs, ensuring optimal performance and balance. Feature Details Model QII-Classic Input Sensitivity 775mV RMS Power Output 15W RMS Output Impedance 8 Ohms THD @ 700Hz 0.8% @ 12W Residual Hum and Noise Better than -90dB Frequency Response 10Hz - 20kHz (± 0.2dB) Damping Factor 11.75 @ 700Hz (referred to 8 Ohms) Valves 2 x EF86, 2 x KT66, 1 x GZ34 Dimensions (W x H x D) 335 x 121 x 171 mm Weight 8.3 kg
