Integrated Stereo Amplifier RA-612

Rotel, The, Co., Ltd.; Tokyo

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  • Year
  • 1976
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 288434

 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
  • 70 W (undistorted)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Integrated Stereo Amplifier RA-612 - Rotel, The, Co., Ltd.; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 140 x 330 mm / 16.9 x 5.5 x 13 inch
  • Notes

  •  A stereo hi-fi integrated amplifier with output power of 2 x 35 WRMS into 8 ohms.The pre-amplifier and power amplifier sections can be separated by the removal of two jumper pins on the back. Rotary Bass and Treble tone controls for both Left and Right channels, rotary switches for Speakers, Tape Monitor and Function, switches for Tone Defeat, Low and High filters, Loudness and Muting, RCA phono and DIN sockets for Phono 1 input and for Tape Monitor 1 input/output, RCA phono sockets for Phono 2, Tuner and two Aux inputs and for Tape Monitor 2 input/output, terminals for two pairs of loudspeakers, jack for headphones and three AC outlets.

    Specification  
    Power Amplifier Section  
    Continuous Power Output 35 watts per channel, min. RMS
    both channels driven into 8Ω from 20 to 20,000Hz
    with no more than 0.5% total harmonic distortion
    Intermodulation Distortion Less than 0.2% at rated output
    Frequency Response 5 - 95,000 Hz, ±3dB at 1 watt per channel
    Damping Factor 50 at 1 kHz
    Input Sensitivity/Impedance 900 mV/33kΩ
    Pre-Amplifier Section  
    Output Voltage 900mV (rated), 1.8v (maximum)
    Harmonic Distortion Less than 0.08% at rated output voltage
    Frequency Response  10 - 50,000 Hz, ±1dB
    Signal to Noise Ratio (IHF)
    ('A' closed circuit network)    		  
     Phono 1, 2
     Tape, Aux, Tuner
     Residual    		 75dB
    94dB
    0.5mV
    Input Sensitivity/Impedance
    (Rated output at 1 kHz)    		  
     Phono 1, 2
     Tape
     Aux, Tuner    		 2mV/47kΩ
    150mV/50kΩ
    150mV/50kΩ
    Output Level  
     Tape out (RCA jack)
     Tape out (DIN jack)    		 350mV/3.3kΩ
    60mV/60kΩ
    Phono Equalization RIAA STD ±0.5dB
    High Filter 12dB/Oct at 10kHz
    Low Filter 12dB/Oct at 40Hz
    Audio Muting -15dB
    Crosstalk 45dB (Overall)

     

  • Net weight (2.2 lb = 1 kg)
  • 10.5 kg / 23 lb 2 oz (23.128 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's manual RA-612)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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