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Quad II Forty Mono Valve Power Amplifier (Pair)


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Condition:Brand new in original retail packaging

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Power Per Channel (8ohms) 40W
Warranty length 2 Years
Brand Quad HiFi

Tech Specs

Power Output 40WRMS
Total Harmonic Distortion @ 700Hz 0.3% at 40W
Total Harmonic Distortion @ 700Hz 0.03% at 1W
Residual hum and noise Better than -80dB
Frequency Response 10Hz to 30kHz (+0dB/-0.5dB)
Power Consumption 180W maximum
Damping Factor 20 @ 700Hz (ref. 8 ohm)
Loudspeaker taps 4 Ohm, 8 Ohm
Input Valves 2 x 6SH7
Output Valves 2 x KT88
Rectifier Valve 1 x 5u4G
Sensitivity 1VRMS
Dimensions (mm): 185H x 200W x 390D

Product Description

Quad II Forty mono monoblok power amplifiers retain the elegance of the 1950s Quad II amplifier, but with a level of sophistication, build quality and finish rarely seen on any product old or new. The chassis has been substantially increased in size to accommodate the much larger components, all of which are hard wired by hand following a similar topology to the original.

The modern listener demands a higher output than the fifteen watts of the original Quad II. The new Quad II-forty uses larger output valves, KT88s instead of KT66s, and a more robust power supply utilising a 5U4G rectifier valve. The input valves are now military specification 6SH7s instead of EF86s.

All Quad products are expected to last a lifetime – even longer. Many Quad customers still derive immense pleasure listening to products built over fifty years ago. These new amplifiers are no exception and with periodic servicing and a caring hand you can expect the performance of these amplifiers to continue for many decades to come.

Supplied in the beautiful champagne finish pictured. A perfect match paired with the Quad QC24 valve pre amplifier and/or Quad ESL 2805 or ESL 2905 speakers.

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