Stereo Power Amplifier RB-990BX

Roland Electronics Co. Ltd., Rotel; Tokyo

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  • Year
  • 1992–1997 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 274644

Click on the schematic thumbnail to request the schematic as a free document.

 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
  • 400 W (660 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Power Amplifier RB-990BX - Roland Electronics Co. Ltd.,
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 440 x 120 x 375 mm / 17.3 x 4.7 x 14.8 inch
  • Notes

  • A hi-fi stereo power amplifier with output power of 200 watts RMS per channel into 8 ohms (0.03% THD) or 330 watts DIN per channel into 4 ohms (THD 1%). With a Protection Circuit. The Rotel RC-980BX or Rotel RC-990BX were available separately as matching Stereo Control Amplifiers. With Power press button switch, indicators for Power and Protection, RCA phono Left and Right input sockets for connection to the Pre-amplifier, terminals for one pair of Loudspeakers and an AC outlet.

    Specification  
    Continuous Power Output RMS 200 watts per channel, min. RMS
    both channels driven into 8Ω
    from 20 to 20,000Hz with
    no more than 0.03% THD
    Power Output DIN 330 watts per channel (1kHz, 4Ω, 1% THD)
    Peak Current 120A (0.1Ω, 10µsec, 1 pulse)
    Total Harmonic Distortion
    (20 to 20,000 Hz)    		 No more than 0.03%
    (continuous rated power output)
    No more than 0.01%
    (continuous 1/2 rated power output)
    Intermodulation Distortion
    (60 Hz : 7 kHz = 4:1)    		 No more than 0.02%
    (continuous rated power output)
    Output Speaker 8Ω nominal
    Damping Factor 1000 (20 - 20,000 Hz, 8Ω)
    Input Sensitivity/Impedance 1.0V/33kΩ
    Frequency Response 4 - 100,000Hz,+0.5dB,-3.0dB
    Signal-to-Noise Ratio
    (IHF A network)    		 120dB

    Versions/Power Requirements (Depending on Destination)
    120V AC 60Hz
    220V AC 50Hz
    240V AC 50Hz
    100V AC 50/60Hz

    Power Consumption max. 550 Watts

  • Net weight (2.2 lb = 1 kg)
  • 15.5 kg / 34 lb 2.3 oz (34.141 lb)
  • Mentioned in
  • -- Original prospect or advert (Rotel Home Theater Components brochure dated 1996)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's manual RB-990BX)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Technical manual RB-990BX)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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