Quad - II Tube mono block power amplifier - Multiple models

Pair of two Quad II valve amplifiers from 1958. They are operational, refurbished and completely original in perfect condition with new valves with barely 10 hours of use. They feature a custom-made power supply built by a specialists technician. Type: 2 valve power amplifiers Output power (RMS): 15 W across the full range from 20 Hz to 20 kHz Frequency response: Within 0.2 dB from 20 Hz to 20 kHz Within 0.5 dB from 10 Hz to 50 kHz Distortion: (measured at 12 W output): Total harmonic distortion of the third harmonic and above at 700 Hz Only higher-order harmonics: at 700 Hz Total harmonic distortion (THD): at 50 Hz not exceeding 0.25% Input sensitivity: 1.4 V rms for 15 W output Load impedance: 1.5 MΩ in parallel with 10 pF Noise floor: 80 dB below the 15 W reference Output impedances: 15 Ω and 7 Ω Effective output resistance: 1.5 Ω for the 15 Ω output setting Power supplies (input): 200-250 V AC single-phase at 40–80 Hz Power consumption: 90 W excluding control unit and tuners, etc. Weight: 8.3 kg each Dimensions (L x W x H): 165 mm x 330 mm x 120 mm Year of manufacture: 1958 / 1970 Made in England PERFECT IN BOTH TECHNICAL AND AESTHETIC ASPECTS.

Estimate:$3,473.42

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