Compact Disc Player A725 (QC)

Studer GmbH, Willi (ReVox); Löffingen

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  • Year
  • 1984–1987
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 201262
    • Brand: ReVox (brand)

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
  • Remote Control (with wire or wireless)
  • Power type and voltage
  • Alternating Current supply (AC) / 100; 120; 140; 200; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Compact Disc Player A725 - Studer GmbH, Willi ReVox;
  • Shape
  • Rack
  • Dimensions (WHD)
  • 450 x 109 x 332 mm / 17.7 x 4.3 x 13.1 inch
  • Notes
  • Model A725 is the first professional CD-Player from Studer.
    Model A725 QC (Quality Control) has a special output option for use in combination
    with a Compact Disc Test System from Koch Records, Austria.

    Uses the Philips CDM-1 drive and first generation Philips chipset:
    SAA7010 CD-Decoder
    SAA7000 Interpolation
    SAA7020 Error correction
    SAA7030 Fourfold-Oversampling and digital filter
    TDA1540 14 + 2 bit D/A converter (one per audio channel).
    IR remote control. Fixed (transformer balanced) and variable output.

    Erster professioneller CD-Player des Herstellers. A725 QC hat spezielle
    Ausgänge für die Anwendung in einem CD-Testsystem der Firma Koch Records, Österreich.
    Verwendet das Philips CDM-1 Dreharm-Laufwerk und den Philips CD-Chipsatz der 1. Generation.
    Nur analoge Ausgänge,
    Festpegel (symmetrisch erdfrei über XLR-Anschlüsse und Cinch) und regelbar (nur Cinch).
    Regelbarer Kopfhörerausgang.
    Ähnlich wie Revox B225, jedoch abweichende Ausstattung und Bedienphilosophie.
    Breite mit 19" Winkeln 483 mm.

  • Net weight (2.2 lb = 1 kg)
  • 8.5 kg / 18 lb 11.6 oz (18.722 lb)
  • Price in first year of sale
  • 2,900.00 DM
  • Mentioned in
  • -- Original-techn. papers.
  • Author
  • Model page created by Bernhard Nagel. See "Data change" for further contributors.

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