Stereophonic Receiver 2252B

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1978
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 241264

 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
  • - This model requires external speaker(s).
  • Power out
  • 104 W (130 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereophonic Receiver 2252B - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 440 x 137 x 365 mm / 17.3 x 5.4 x 14.4 inch
  • Notes

  • A hi-fi stereo receiver with an AM/FM tuner with an analogue dial and an integrated amplifier with power output of 2 x 52 watts into 8 ohms. With Signal Strength and FM Tuning Meters, Gyro-Touch Tuning, Tape Copy 1⇾2, 2⇾1, Tape Monitor 1, 2, FM de-emphasis, FM Muting, Mono, Hi Filter, Loudness, Speakers 1, 2, Selector switch (AM, FM, Phono 1, Phono 2, Aux), Bass, Mid and Treble Tone Controls,  jacks for headphones and Dubbing. On the back, a Dolby FM decoder receptacle, AM rod antenna, terminals for AM and FM antennae, phono inputs for Phono 1, 2, Aux, for input/output Tape 1,2, FM quadradial output, Main In/Pre Out, terminals for 2 pairs loudspeakers, 2 AC outlets.      

    Specification  
    Amplifier Section  
    Rated Power Output  
     Minimum Continuous Average Power per
     channel Both Channels Driven 20Hz-20kHz    		 52W into 8Ω (THD 0.05%)
    65W into 4Ω (THD 0.1%)
    IM Distortion 0.05% (8Ω), 0.1% (4Ω)
    Damping Factor 45
    Sensitivity/Impedance (at MAIN IN) 1.5V/33kΩ
    Preamplifier Section  
    Phono  
     Input Sensitivity/Impedance
     Frequency Response, RIAA 20Hz-20kHz    		 1.8mV/47kΩ
    ±0.75dB
     S/N Ratio
     (at rated output and 7.75 mV input)    		 76dB
    Line Level (Aux and Tape)  
     Input Sensitivity/Impedance 180mV/20kΩ
     Frequency Response  (incl. power amp) 10Hz-60kHz ±1.25dB
     S/N Ratio 90dB
    Output Voltage/Impedance  
     Tape Out 775mV/600Ω
     Pre-Out 1.5V/900Ω
    FM Tuner Section  
    Sensitivity  
     IHF Usable 1.9µV
     IHF 50dB Quieting Mono 3.2µV
    Stereo 40µV
    Distortion at 65dBf (1000µV) 1000Hz Mono 0.15%, Stereo 0.3%
    Frequency Response 30Hz-15kHz Mono +0.2dB,-1.5dB, Stereo ±1.5dB
    Capture Ratio 1.0dB
    Alt. Channel Selectivity 70dB
    Image Response Rejection 70dB
    IF Rejection (Balanced) 95dB
    Stereo Separation 1000Hz 40dB
    AM Tuner Section  
    IHF Usable Sensitivity 15µV
    Distortion (THD), 30% Modulation 0.5%
    S/N Ratio 50dB
    Alt. Channel Selectivity 46dB
    Image Rejection 45dB
    IF Rejection 40dB

    Versions/power requirements
    US & Canada (U, C) / 120V AC 60Hz
    Europe (N) / 110, 120, 220, 240V AC 50/60Hz with voltage selector

    Power Consumption: 220 Watts

    Designed in U.S.A., Produced in Japan

  • Net weight (2.2 lb = 1 kg)
  • 14.2 kg / 31 lb 4.4 oz (31.278 lb)
  • Mentioned in
  • -- Original prospect or advert (1978 Marantz 25th Anniversay and 1980 Marantz hi-fi catalogues)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Handbook of instructions Marantz 2252B)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Service Manual 2252B)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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