• Year
  • 1984
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 148506

 Technical Specifications

  • Number of Tubes
  • 13
  • Valves / Tubes
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 220 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: D-70 MKII - 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.
    60 Watts per channel minimum continous (both channels operating) at 16 ohms from 20Hz to 20kHz with less that 1% total harmonic distortion (typically below .005% at one watt). 15 Hz. to 30 Khz (-3 dB points).
    Tube complement: (3) 6922, (4) 6FQ7, (2 matched pairs) 6550, (1) 6550, (1) 12AX7.
  • Net weight (2.2 lb = 1 kg)
  • 24 kg / 52 lb 13.8 oz (52.863 lb)
  • 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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