Stereo DC Power Amplifier RB-2000 Class AB

Roland Electronics Co. Ltd., Rotel; Tokyo

Data
Forum
Pictures
Collections

  • Year
  • 1978
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 154072

 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) / 100; 120; 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 240 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo DC Power Amplifier RB-2000 Class AB - Roland Electronics Co. Ltd.,
  • Shape
  • Rack
  • Dimensions (WHD)
  • 482 x 143 x 430 mm / 19 x 5.6 x 16.9 inch
  • Notes

  • A hi-fi stereo Class AB DC power amplifier with power output of 120 watts RMS per channel both channels driven into 4 ohms or 8 ohms. Direct-coupled Darlington parallel push-pull OCL pure complementary output circuitry, DC amplifier configuration, Class AB operation, toroidal power transformer, separate power supplies for (1) Dual FET, Differential and Pre-Driver stages, and (2) Power Output stage. Sophisticated protection circuitry. With Power switch, two Peak Power meters (0-240 watts), Protection indicator, Speaker switches A  B, and on the rear, two RCA phono inputs (Input Capacitor and Direct Coupling), terminals for 2 pairs of loudspeakers and a Ground connection.

    Specification  
    Continuous Power Output 120 watts per channel min. RMS both channels
    driven into 4Ω or 8Ω from 20 to 20,000Hz with
    no more than 0.01% total harmonic distortion
    Total Harmonic Distortion
    (20Hz to 20,000Hz)    		 No more than 0.01%
    (continuous rated power output)
    No more than 0.006%
    (60 watts per channel power output, 8Ω)
    Intermodulation Distortion
    ( 60Hz: 7 kHz = 4 : 1)    		 No more than 0.015%
    (continuous rated power output)
    Frequency Response DC IN, 4 to 100,000Hz (+0dB,-1dB)
    AC IN, 5 to 100,000Hz (+0dB,-1dB)
    (1 watt per channel power output, 8Ω)
    Input Sensitivity/Impedance 1.5V/50kΩ
    Output: Speaker A, B (4-16Ω); A + B (8-16Ω)
    Damping Factor 60 (20 to 20,000Hz, 8Ω), 100 (1kHz, 8Ω)
    Hum & Noise 110dB (IHF, A network)
    Crosstalk 10kHz 65dB (reverse channel short)

    Versions/Power requirements
    120V AC 60Hz
    220V AC 50Hz
    240V AC 50Hz
    100, 120, 220, 240V AC 50/60Hz (switchable)

    Power Consumption:  900 watts (8Ω), 3,200 watts (4Ω)

    See also the partnering Rotel RC-2000 Stereo DC Control Amplifier.

  • Net weight (2.2 lb = 1 kg)
  • 18 kg / 39 lb 10.4 oz (39.648 lb)
  • Source of data
  • -- Original prospect or advert
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's manual RB-2000)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum