Quad II Classic Monoblock Amplifiers – Lancaster Grey

Here we have a classically styled power amplifier from former British company Quad. Part of the Quad II Series the Classic Mono comes in the Lancaster Grey finish and in good fully working condition, noting a couple of minor blemishes which can be seen in the photographs. They are supplied in original factory packaging along with mains cables and our regular three month warranty.
Quad Say….
The QUAD II Series is based on the original QUAD II amplifier, originally created by Peter Walker in 1953. Not only are these some of the finest sounding valve pre/power combinations available to date, but the genuine heritage and craftsmanship of the original have been preserved in its exquisite styling. 2015 also sees the launch of our new Lancaster Grey finish.
Designed by QUAD founder Peter Walker, the truly iconic QUAD II helped to define the modern concept of high-fidelity sound in the 1950s. QUAD has kept the legend alive with the current QUAD II classic, a faithful reproduction of the original valve monoblock with the build quality and aesthetics lovingly updated for the modern era. The new version takes this a step further, with the development of additional, pre, power and integrated models.
The QUAD II Series circuit design is the work of Tim de Paravicini, a man widely acknowledged to be the UK’s foremost valve amp designer. His design is faithful to Peter Walker’s Philosophy of cathode loading onto the same output stage and fundamental simplicity of design, ensuring the new amp delivers the same wealth of detail and exquisite tone as its famous predecessor.
With KT-66 output valves on the Classic Integrated / II Classic and KT-88 on the II-forty / II-eighty, the push-pull configuration is visually stunning, even when safely secured within the cage that protects them. The output characteristic is a superbly refined sound, matched with both classic and contemporary loudspeakers.
The amplifiers had to retain the retro look of its famous predecessor but with the transformer and power, amplifier sections blended into a modern compact design. It has an understated elegance which lies beneath its smooth curves and lustrous finish, referencing the time when vacuum tubes ruled the electronics industry and Peter Walker was considered by many to be the master of audiophile design.
All QUAD products are expected to last a lifetime – even longer. Many QUAD customers still derive immense pleasure listening to products built only fifty years ago. The new QUAD II Classic Integrated amplifier is no exception, and with periodic servicing and a caring hand, you can expect its performance to continue for years to come.
This is a faithful reproduction of the original mono amplifier – the new QUAD II Classic offers audiophiles the chance to recreate the spirit and atmosphere produced by one of the most famous amplifiers in audio history. Peter’s circuit, notably the design of the output transformer has become of legendary status – analysed by the finest minds in the industry.
The QUAD II classic has been recreated accurately with output valves and input valves the equivalent of those used in the original. The output valves produce around 15W per channel operating in Class A, which allow a gloriously sweet and refined sound with appropriately matched contemporary loudspeakers. The QII Mono is available and supplied in matched pairs.
Specifications:
Model: QII-Classic
Input Sensitivity: 775 mV RMS
Power Output: 15 W RMS
Output Impedance: 8 Ohms
THD @ 700 Hz: 0.8% @ 12 W
Residual Hum and Noise: Better than – 90 dB
Frequency Response: 10 Hz – 20 kHz (± 0.2 dB)
Damping Factor: 11.75 @ 700 Hz (referred to 8 Ohms)
Valves: 2 x EF86; 2 x KT66; 1 x GZ34
Dimensions: 335 (W) x 171 (D) x 121 (H) mm
Weight: 8.3 kg