Stereophonic Receiver 2325

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1975–1977
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 150209

 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
  • 250 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereophonic Receiver 2325 - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 490 x 146 x 386 mm / 19.3 x 5.7 x 15.2 inch
  • Notes

  • A hi-fi stereo receiver with AM/FM stereo tuner with analogue dial and integrated amplifier with power output of 2 x 125 watts into 4 ohms or 8 ohms, housed in a metal case (WC-43 wooden cabinet optional). With Dolby NR with controls, Gyro-Touch tuning, Signal strength and FM Tuning meters, Bass, Mid, Treble tone controls, Low and Hi filters, Loudness, Muting, Main and Remote Speakers. Jacks for Dubbing and Headphones, AM ferrite rod antenna, terminals for AM and FM antennae, RCA phono sockets for input Phono (MM), Aux, for input/output for 2 Tapes, for FM Quadradial output, adjusters for Dolby FM preset levels and Muting level, terminals for 2 pairs of loudspeakers and 2 AC outlets.

    Specification  
    Preamplifier Section  
    Input Sensitivity/Impedance Phono: 1.8mV/47kΩ
    Line: 180mV/100kΩ
    Output Level and Impedance Tape Recorder: 1V into 47kΩ
    Pre-Out Output/ Impedance 1V/900Ω
    Phono Frequency Response 30Hz-15kHz ±1dB (RIAA)
    Noise-Aux  -80dB
    Filters  
     Hi Filter
     Low Filter    		 9kHz, 12dB per octave
    50Hz, 12dB per octave
    Amplifier Section  
    Headphones Output 0.7V into 8Ω at rated distortion
    Input Sensitivity for MAIN IN 1V
    Rated Power Output  
    (Continuous average power per channel,
    all channels driven)    		  
     Power Output 125 Watts, 4Ω
    125 Watts, 8Ω
    75 Watts, 16Ω
     Power Band
     THD    		 20Hz-20kHz
    0.15%
    Frequency Response 5Hz-70kHz ±2dB
    10Hz-30kHz ±1dB
    Damping Factor 40 at 1kHz
    FM Section  
    Ultimate Quieting 50µV for 70dB
    Selectivity Alternate channel > 75dB
    Capture Ratio 1.5dB
    Muting Threshold variable from 8µV to 40µV
    Stereo Separation 42dB at 1kHz, 27dB at 15kHz
    Total Harmonic Distortion < 0.3% (Stereo), < 0.2% (Mono)
    Frequency Response 30Hz-15kHz ±1dB
    Total Spurious Rejection > 90dB
    Image Rejection > 90dB
    IF Rejection > 100dB
    Quadradial Output 300mV, 15kΩ for ±75kHz Deviation
    AM Section  
    Sensitivity > 40µV
    Selectivity Adjacent channel 1kHz > 30dB

    Versions/Power requirements
    120V AC 50/60Hz
    110/120/220/240V AC 50/60Hz switchable internally

    AM/FM-Stereo-Receiver mit 2 x 125 Watt Sinus an 8 Ω und Dolby NR.
    Leistungsbandbreite 20 - 20.000 Hz (-0.25 dB)
    Klirrfaktor 0,15% (THD)
    LS-Anschlüsse 4 - 16 Ohm, LS-Umschaltvorrichtung.

    Designed in USA, Produced in Japan

  • Net weight (2.2 lb = 1 kg)
  • 22.5 kg / 49 lb 9 oz (49.559 lb)
  • Source of data
  • -- Original prospect or advert
  • Mentioned in
  • -- Original prospect or advert (1975 Marantz AM/FM Stereo Receivers catalogue & 1977 Marantz Gesamptkatalog)
  • Literature/Schematics (1)
  • -- Original-techn. papers.
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Service Manual 2325)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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