Quad
First released in 1953
QII-Forty
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If you make a purchase, Linephaze may receive an affiliate commission.Specifications
Power Output (16Ω/8Ω/4Ω/2Ω)- / 40W / 40W / -
amplification technologyVacuum Tube
speaker load impedance4Ω, 8Ω
Frequency Response10Hz - 30kHz (+0dB, -0.5dB)
Input Sensitivity1V RMS
Damping Factor20 @ 700Hz (Referred To 8 Ω)
THD700Hz: 0.3% @ 40W, 0.03% at 1W
Residual Hum And Noise> -80dB
Valves6SH7 Input, KT88 Output, 5U4G Rectifier