Stereo Power Amplifier RB-870

Roland Electronics Co. Ltd., Rotel; Tokyo

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  • Year
  • 1984 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 307956

 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
  • 120 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Power Amplifier RB-870 - Roland Electronics Co. Ltd.,
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 91 x 315 mm / 16.9 x 3.6 x 12.4 inch
  • Notes

  • A 2 x 60 watt Hi-Fi stereo power amplifier, partner to the Rotel RC-870 Stereo Control Amplifier. Press button for Power and Power on indicator. Protection circuit indicator and Bridged Mono indicator. Dual mono design. A Normal/Bridged Mono switch on the back enables the Left and Right channels to be bridged into a into a single mono amplifier.

    Continuous Power Output :
    60 watts per channel, min. RMS both channels driven into 8Ω
    from 20Hz to 20kHz with no more than 0.03% Total Harmonic Distortion
    Power Output (BTL) :
    120 watts mono, min. RMS driven into 8Ω
    from 20Hz to 20kHz with no more than 0.03% Total Harmonic Distortion
    Total Harmonic Distortion ......:  No more than 0.03%
    Intermodulation Distortion .... :  No more than 0.05%
    Damping Factor .................. :  280 (20Hz - 20kHz 8Ω)
    Speaker load impedance  .....:  8 - 16Ω
    Input Sensitivity/Impedance ..:  1.0V/25kΩ
    Frequency Response ...........:  15Hz - 120kHz,  +0dB, -1dB
    Signal to Noise Ratio ...........:  116dB (IHF, A Network)

    Versions/Power Requirements
    120 V AC 60Hz
    220 V AC 50Hz
    240 V AC 50Hz
    120/220/240 V AC 50-60Hz Switchable (Not available in UK, Canada and Scandinavia)

  • Net weight (2.2 lb = 1 kg)
  • 9.4 kg / 20 lb 11.3 oz (20.705 lb)
  • Mentioned in
  • Reviewed by Stereo Review magazine April 1985
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's Manual for the RB-870)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Technical Manual for the RB-870)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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