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Quad 909 Power Amplifier Current Dumping 140W Stereo Tested Working UK
Chorlton Analogue

Quad 909 Power Amplifier Current Dumping 140W Stereo Tested Working UK

£675.00

Quad 909 power amplifier in good cosmetic condition with a few light marks, in full working order, nice and clean. Lovely example and sounds glorious!

Specifications

  • Audio Inputs: 1
  • Audio Outputs: 1
  • Colour: Silver/Gold
  • Number of Inputs: 1
  • Number of Outputs: 1
  • Power: 140W
  • Country of Origin: China
  • Year Manufactured: 2000s
  • Power Output: 250 W RMS per channel into 4Ω
  • Amplifier Topology: Current Dumping (solid-state)
  • Total Harmonic Distortion: <0.01% (100 W into 8Ω, 20 Hz–20 kHz)
  • Frequency Response: 13 Hz – 40 kHz (−1.0 dB)
  • Signal-to-Noise Ratio: 108 dB
  • Input Sensitivity: 775 mV
  • Minimum Speaker Impedance: 4Ω
  • Dimensions: 321 × 140 × 240 mm
  • Weight: 12 kg
  • Mains Voltage: 240V
  • Power Output (4Ω, stereo): 140 W RMS per channel into 8Ω
  • Amplifier Topology: Current Dumping (solid-state; Class A error-correction + Class B output stage)
  • Total Harmonic Distortion (THD): <0.01% (100 W into 8Ω, 20 Hz–20 kHz)
  • Frequency Response: 13 Hz – 40 kHz (–1.0 dB)
  • Signal-to-Noise Ratio: 108 dB (ref. 140 W, 20 Hz–20 kHz bandwidth)
  • Input Sensitivity: 775 mV (RCA line input)
  • Inputs: 1× stereo RCA line input; 1× Quad AMPBUS (D-sub 15-pin, for Quad 99 series integration)
  • Minimum Speaker Impedance: 4Ω
  • Crosstalk (channel separation): –90 dB at 1 kHz
  • Dimensions (W × H × D): 321 × 140 × 240 mm (plus connectors)
  • Weight: 12 kg
  • ESL Speaker Compatibility: Compatible with ESL-63, ESL-988, ESL-989; not for use with original ESL without protection circuit

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