Quartz Synthesized Stereo Tuner ST551 (ST-551)

Marantz (Sound United LLC); Vista, CA

  • Year
  • 1985
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 309841

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Radio Control (+Remote Wire etc)
  • Power type and voltage
  • Alternating Current supply (AC) / 120 or 110-120 or 220-240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Quartz Synthesized Stereo Tuner ST551 - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 80 x 200 mm / 16.5 x 3.1 x 7.9 inch
  • Notes
  • An AM/FM quartz synthesized stereo hi-fi tuner available in a gold or black finish, with a FET front end and linear phase IF filters. With built-in BUS remote control receiver and AV BUS generator and remote control (RMC-14) which also operates other Marantz separates. 16 FM and 8 AM presets. Memory back up and last station memory. With a clip-on adjustable AM loop antenna,  connectors for AM and FM antennae, RCA sockets for line output, Easy BUS and Remote Control BUS and a socket from Timer. On models with voltage selector, a Scan Step/FM De-emphasis switch.

    Specification
    FM Tuning Range .................:  87.5 - 108 MHz
    MW Tuning Range ................:  531 - 1602 kHz
    Signal to Noise Ratio ............:  76dB/70dB (FM Mono/Stereo), 52dB (MW)
    Selectivity .............................:  65dB (FM), 30dB (MW)
    Sensitivity .............................:  0.9 µV (Mono), 30µV (Stereo), 400µV (MW)

    Versions/Power Requirements
    120 V AC 60Hz
    220-240 V AC 50/60Hz
    110-120/220-240 V AC 50/60Hz with 2 position voltage selector

    Similar to the Marantz Quartz Synthesized Stereo Tuner ST551L which additionally has LW.

    Designed in USA Made in Japan

  • Net weight (2.2 lb = 1 kg)
  • 2.3 kg / 5 lb 1.1 oz (5.066 lb)
  • Mentioned in
  • - - Manufacturers Literature (1985-6 Marantz Hi-Fi Video catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Model ST551 Owner's Manual)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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