Integrated Stereo Amplifier RA-840

Roland Electronics Co. Ltd., Rotel; Tokyo

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  • Year
  • 1982
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 307742

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 120 or 220 or 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 80 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Integrated Stereo Amplifier RA-840 - Roland Electronics Co. Ltd.,
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 94 x 299 mm / 16.9 x 3.7 x 11.8 inch
  • Notes

  • A 2 x 40 watt Hi-Fi stereo integrated amplifier. Rotary controls for Bass, Treble and Balance and Volume. Press Buttons for Power, Speaker Selection (A and/or B),  Mono,  High Filter, Loudness, Tape Monitors, Phono, Aux and Tuner. Indicators for Peak Power Level. Jack for Headphones.

    Continuous Power Output :
    40 watts per channel, min. RMS both channels driven into 8 ohms
    from 20Hz to 20kHz with no more than 0.03% Total Harmonic Distortion

    Speaker load impedance       : 4 - 16Ω
    Headphones load impedance : 4 - 16Ω

    Input Sensitivity/Impedance :
      Phono ............. 2.5mV/47kΩ
      Tuner/Aux/Tape 150mV/33kΩ

    Versions/Power Requirements
    120 V AC 60Hz
    220 V AC 50Hz
    240 V AC 50Hz
    120/220/240 V AC 50/60Hz

  • Net weight (2.2 lb = 1 kg)
  • 6.2 kg / 13 lb 10.5 oz (13.656 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's Manual for the RA-840)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Technical Manual for the RA-840 dated Aug 82)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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