CD-4 Disc Demodulator CD-400B

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1976/1977
  • Category
  • Miscellaneous (Other, Various) - see notes
  • Radiomuseum.org ID
  • 133844

 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) / 110; 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: CD-4 Disc Demodulator CD-400B - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 210 x 100 x 323 mm / 8.3 x 3.9 x 12.7 inch
  • Notes

  • A demodulator which reproduces discrete 4-channel sounds from CD-4 records. It is connected between a stereo record player fitted with a CD-4 cartridge and a 4-channel preamplifier. Another CD-4 source such as a 4 channel tape deck can be also be connected. With push buttons switches for Selector (Phono, Aux) and Mode (2 Channel, 4 Channel Auto) and a 'Radar' indicator which is lit when a CD-4 record is playing.  On the back, RCA phono sockets for Phono Left & Right input, for Aux input Front and Rear Left and Right input (connected direct to the 4 channel output), for 2 channel Direct Output, and for 4 channel Front and Rear Left and Right Output, and Right and Left rotary Separation controls. A calibration record is supplied for adjusting the right and left separations.

    Specification  
    SUM SIGNAL  
    Frequency Response ref. to RIAA 40Hz-12kHz ±1dB
    Total Harmonic Distortion at 1kHz  0.1%
    Input Impedance 100kΩ
    Output Impedance 5kΩ
    Difference Signal  
    Total Harmonic Distortion at 1kHz 1%
    S/N -60dBs
    Muting Level -68dBs
    Input Level for ±4kHz Lock Range  -53dBs
    Channel Separation not less than 20dB

    Versions/Power Requirements  
    120V AC 50/60Hz
    110/120/220/240V AC 50Hz

    Power Consumption:  10 watts

    Designed in USA, Produced in Japan

  • Net weight (2.2 lb = 1 kg)
  • 2.9 kg / 6 lb 6.2 oz (6.388 lb)
  • Source of data
  • -- Collector info (Sammler)
  • Mentioned in
  • -- Original prospect or advert (1976-77 Marantz Hauptkatalog catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Marantz CD-400B)
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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