Stereophonic Receiver SR-7100DC

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1982
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 121096

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 120; 220; 240 & AA: 4 x 1.5 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereophonic Receiver SR-7100DC - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 416 x 117.5 x 388 mm / 16.4 x 4.6 x 15.3 inch
  • Notes

  • A hi-fi stereo receiver with a digital frequency display, with a 2 band quartz synthesized AM/FM stereo tuner and a DC amplifier with power output of 2 x 50 watts RMS. With a 5 LED signal strength meter, 8 keys for 8 FM and 8 AM radio stations, programmable timer, slider Bass, Mid and Treble tone controls, 8 kHz filter, auto/manual/scan tuning, tape copy function, jack for headphones and a compartment on top for batteries which save the radio station memory. On the rear, clip-on AM loop antenna, terminals for AM and FM antennae, RCA phono sockets for input Phono and Aux, for input/output tape1 and tape2, terminals for 2 pairs of loudspeakers, switch for AM and FM scan step, AC outlet.

    Specification  
    Amplifier Stage  
    Rated Output Per Channel  
      Into 8Ω
      Into 4Ω    		 50W RMS (60W DIN)
    63W RMS (83W DIN)
    Total Harmonic Distortion at RMS 8Ω 0.03%
    Damping Factor 8Ω (1 kHz) 50
    Preamplifier Stage  
    Frequency Response  
      Phono: (RIAA)
      Aux:    		 20Hz-20kHz ±1.0dB
    16Hz-30kHz ±2 dB
    Signal/Noise Ratio  
      Phono: 7.75mV 20V out
      Aux: Vol Max 20V out    		 81dB
    96dB
    Input Sensitivity/Impedance  
      Phono
      Auxiliary    		 2.7mV/47kΩ
    160mV/20kΩ
    FM Stage (87.5-108MHz)  
    Sensitivity  
      DIN Mono (S/N 26 dB, 75Ω)
      DIN Stereo (S/N 46 dB, 75Ω)    		 1.0µV
    20µV
    Selectivity/Adjacent Channel 98MHz 60dB
    Signal/Noise Ratio 98 MHz  
      Unweighted:
      Weighted:    		 67dB Mono, 63dB Stereo
    75dB Mono, 70dB Stereo
    MW Stage (530-1620kHz)  
    Sensitivity (20dB S/N 30% mod., 1MHz 30µV
    Selectivity 30dB

    Versions/Power requirements
    110/120/220/240V AC 50/60Hz with voltage selector

    Power consumption:  250 watts

    Made in Japan

    Nur digitale Frequenzanzeige. Benötigt 4× 1,5-Volt-Batterien für Senderspeicher und Uhr. Eingänge für Phono, Aux und 2× Band. Vier Lautsprecherklemmen.

  • Net weight (2.2 lb = 1 kg)
  • 10.5 kg / 23 lb 2 oz (23.128 lb)
  • Source of data
  • - - Data from my own collection
  • Mentioned in
  • -- Original prospect or advert (1982 Marantz Klang und Qualität & 1982 Die Goldschmiede kataloge)
  • Literature/Schematics (1)
  • - - Manufacturers Literature
  • Author
  • Model page created by Peter Böhm. See "Data change" for further contributors.

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