Compact Disc Player Alpha

A&R Cambridge Ltd. (ARCAM); Waterbeach, Cambridge

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  • Year
  • 1989 ?
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 312672

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • CD-Player, -Writer, MD, MOD (audio); Radio Control (+Remote Wire etc)
  • Power type and voltage
  • Alternating Current supply (AC) / 120 or 220 or 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Compact Disc Player Alpha - A&R Cambridge Ltd. ARCAM;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 85 x 287 mm / 16.9 x 3.3 x 11.3 inch
  • Notes

  • A stereo hi-fi compact disc player with a digital display and remote control (CR10). With a twin power transformer and oversampling digital to analogue conversion. RCA sockets for audio output and digital output.

    Specification
    Playback system
    16 bit Compact Disc Digital Audio, using ultra linear, dual DACs (TDA1541) and high performance analogue filter and output stages

    Optical readout system (Philips CDM-4)
    Laser type                          semiconductor Al Ga As
    Numerical Aperture             0.45
    Wavelength                        800 nm

    Typical Audio Performance  20Hz-20kHz unless otherwise stated)
    Frequency response          ± 0.1dB 10Hz-10kHz,
                                            - 0.5dB at 20kHz
    Channel balance               ± 0.2dB
    Channel phase balance     ± 0.5 deg.
                                           0.007% at 1 kHz, 0dB
    Signal to Noise Ratio        98dB CCIR/ARM weighted
    Dynamic Range               96dB
    Channel Separation          90dB at 1 kHz
    Wow and flutter                Quartz precision control

    Outputs
    Output level                      2.2V rms at MSB (0dB)
    Output impedance            22ohms
    Minimum load impedance 5k ohm

  • Net weight (2.2 lb = 1 kg)
  • 3.7 kg / 8 lb 2.4 oz (8.15 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Alpha CD Handbook dated June 1991)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Alpha CD Player Service Manual Issue 2 October 91)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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