D-90

Audio Research, Plymouth

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  • Year
  • 1980
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 148502

 Technical Specifications

  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125; 210-250 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: D-90 - Audio Research, Plymouth
  • Shape
  • Rack
  • Dimensions (WHD)
  • 19 x 7 x 16.5 inch / 483 x 178 x 419 mm
  • Notes
  • Tube stereo power amplifier.
    90 watts per cannel minimum continuous (both channels operating) at 16 ohms from 25 Hz to 20 kHz with less than 1% total harmonic distortion. Typically below .01% at 1 watt. Approximate power available per channel at "clipping" (both CH. OP, 1kHz): 105 watts.
    Tube complement: (4) 12AX7, (2) 6FQ7, (2) 12AT7 (4 matched pairs) 6550, (1) 6550.
    D-90 Revised: (4) 12AX7, (2) 6FQ7, (2) 12AT7, (4 matched pairs) 5881, (1) 6550
  • Net weight (2.2 lb = 1 kg)
  • 29 kg / 63 lb 14 oz (63.877 lb)
  • Price in first year of sale
  • 2,195.00 $
  • Source of data
  • -- Original prospect or advert
  • Mentioned in
  • -- Schematic
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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