Compact Disc Player CD-7 74CD7/02G / CD-7F / CD-7K

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1998
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 309670

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • CD-Player, -Writer, MD, MOD (audio); Remote Control (with wire or wireless)
  • Power type and voltage
  • Alternating Current supply (AC) / 100 or 110 or 220 or 230 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Compact Disc Player CD-7 74CD7/02G / CD-7F / CD-7K - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 454 x 139 x 344 mm / 17.9 x 5.5 x 13.5 inch
  • Notes

  • A stereo hi-fi Compact Disc player with remote control (RC-7CD) designed by Ken Ishiwata employing mid 1980s Philips TDA1541A S2 Double Crown 16 bit twin DACs.  With cinch jack and optical digital input sockets, unbalanced analogue output cinch jacks, XLR balanced analogue output connectors and cinch jack and optical output sockets with a 16/20 bit selector switch.

    Specification
    Audio Characteristics
    Channels ........................................................:  2 channels,
    Sampling frequency (CD mode) .....................:  44.1 kHz
    Sampling frequency (D/A mode) ....................:  32/44.1/48 kHz
    Quantization ...................................................:  16-bit linear/channel
    Error correction ............................................. :  Cross-interleave read solomon code (CIRC)
    D/A conversion ..............................................:  1-bit linear/channel
    Wow & flutter .................................................:  Precision of quartz
    Optical Readout System
    Laser (VAU1252) ...........................................:  AIGaAs semiconductor
    Wavelength ...................................................:  780 nm
    Frequency Characteristics
    Frequency range ..........................................:  2 Hz - 20 kHz
    Dynamic range .............................................:  > 98 dB
    Signal to Noise Ratio ...................................:  > 102 dB
    Channel separation (1 kHz) .........................:  > 100 dB
    Total Harmonic Distortion (1 kHz) ................:  0.002 %
    Analog output
    Output level (cinch jacks) ............................:  2.2 V RMS
    Output impedance .......................................:  250Ω
    Digital output
    Output level (cinch jack) ..............................:  0.5 Vp-p/75Ω
    Output level (optical jack) ............................:  -19 dBm
    Digital input
    Input level (cinch jack) ................................:  0.5 Vp-p/75Ω
    Input level (optical jack) ..............................:  -19 dBm

    Versions/Power Requirements
    74CD7/02G       230 V AC 50Hz
    CD-7F               100 V AC 50/60Hz
    CD-7K               110/220 AC 50/60Hz

  • Net weight (2.2 lb = 1 kg)
  • 16.6 kg / 36 lb 9 oz (36.564 lb)
  • Mentioned in
  • - - Manufacturers Literature (1998 Marantz Hi-Fi Catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual model CD-7 first issue 1999.03)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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