90 Watt amplifier M91

Quad (Brand); Acoustical Manufacturing Co. Ltd.; Huntingdon

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  • Year
  • 1950 ??
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 338215

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 100; 110; 200; 210; 220; 230; 240; 250 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 90 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 90 Watt amplifier M91 - Quad Brand; Acoustical
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 16.5 x 11.5 x 9 inch / 419 x 292 x 229 mm
  • Notes

  • Monaural power amplifier.

    Specifications:

    • Power output: 90 Watts undistorted (3% max @ 90W.)
    • Frequency range: 30-16000 cps +- 0.5dB
    • Output impedances: 7, 15, 30, 45, 60, 140, 170, 206, 250 Ohm.
    • Damping factor: 2
    • Gramophone input: 45mV in 100KOhm @ full power.
    • Microphone input: 2mV in 200 Ohm @ full power.
    • Auxiliary input: 0.7mV in 20 Ohm @ full power.

     

     

  • Net weight (2.2 lb = 1 kg)
  • 49 lb (49 lb 0 oz) / 22.246 kg
  • Mentioned in
  • -- Original prospect or advert (Acoustical - Huntingdon)
  • Author
  • Model page created by Dirk Bladt. See "Data change" for further contributors.

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