AM/FM Stereo Tuner ST450

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1981/1982
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 244030

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: AM/FM Stereo Tuner ST450 - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 416 x 73 x 194 mm / 16.4 x 2.9 x 7.6 inch
  • Notes

  • A 2 band hi-fi AM/FM stereo tuner with a digital display. With Electronic Gyro Touch Tuning, FM Tuning, Signal Strength and Stereo indicators, push button switches for FM, MW, Mode (Stereo/Mono), Servo Lock (On/Off) and FM Muting. On the back, terminals for AM and FM antennae. an adjustable AM clip-on loop antenna, and a Line Output interconnect cable with phono plugs.

    Specification  
    FM TUNER SECTION  
    Frequency Range 87.5 - 108MHz
    Usable Sensitivity 40kHz Deviation, 98MHz  
      Mono       S/N 26dB
      Stereo     S/N 46dB    		 0.9µV
    20µV
    Alternate Channel Selectivity, 98MHz 70dB
    Image Response Rejection, 98MHz 70dB
    IF Rejection, 98MHz  88dB
    Spurious Response Rejection, 98MHz 90dB
    AM Suppression, 98MHz 55dB
    Signal-to-Noise Ratio at 98MHz  
      Un-weighted Mono 73dB
    Stereo 65dB
      Weighted Mono 76dB
    Stereo 70dB
    Pilot Signal & Subcarrier Rejection 19 kHz 65dB
    38 kHz 68dB
    Total Harmonic Distortion at 98MHz Mono   0.17%
    Stereo 0.2%
    Frequency Response 30Hz - 15kHz +0,-1dB       
    Stereo Separation 45dB
    Channel Balance 0.2dB
    Output Voltage, 1kHz 700mV
    Output Impedance, 1kHz 1.8kΩ
    Acceptable Load Impedance, 1kHz 47kΩ
    Antenna Terminals Balanced   300Ω
    Unbalanced 75Ω
    MW TUNER SECTION  
    Frequency Range 531 - 1602kHz
    Usable Sensitivity (20dB S/N 30% Mod., 1MHz) 10µV
    Selectivity 1MHz 35dB
    Image Rejection, 1MHz 45dB
    IF Rejection, 1MHz 45dB
    Spurious Response Rejection, 1MHz 56dB
    Signal-to-Noise Ratio, 1MHz 55dB
    Frequency Response, 1MHz 40Hz -  2.2kHz, ±3dB
    Total Harmonic Distortion, 1MHz 0.3%

    Versions / Power requirements
    A /  240V AC
    C /  120V AC
    N /  220; 110V AC with voltage selector
    T /  220; 240V AC with voltage selector
    P /  120V AC

    Power consumption: 14W

    Similar to the 3 band Marantz ST450L LW/MW/FM Stereo Tuner which additionally has  LW.

    Made in Japan.

  • Net weight (2.2 lb = 1 kg)
  • 3.2 kg / 7 lb 0.8 oz (7.048 lb)
  • Mentioned in
  • -- Original prospect or advert (1981 Marantz Hi-Fi catalogue & two 1982 Marantz catalogues)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owners Manual Marantz ST310/ST310L ST450/ST450L)
  • Author
  • Model page created by Bartosz Szwed. See "Data change" for further contributors.

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