Integrated Amplifier Quarter A mosFET PM-94

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1985
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 309043

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110 or 120 or 220 or 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 280 W (440 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Integrated Amplifier Quarter A mosFET PM-94 - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 465 x 146 x 410 mm / 18.3 x 5.7 x 16.1 inch
  • Notes

  • A 2 x 140 watt stereo integrated amplifier with a Mosfet power stage, which operates in Class A mode at normal listening levels and switches automatically to Class AB mode to handle high peaks and at high listening levels. Inputs for Phono (MM/MC), CD, Tuner, Aux1, Aux2, input/outputs for 3 Tape recorders (DAT/Tape1, DAT/Tape2, Hi-Fi VCR), and terminals for two pairs of loudspeakers (System 1, 2). Sockets for Pre Out and Main In. On the front, push buttons for Power, Speakers (1, 2), Tone Defeat, Tape Monitor (Source, DAT/Tape1,DAT/Tape2, Hi-Fi VCR), Muting, Subsonic filter, Mono and CD/Phono Direct,  rotary controls for Treble Left, Treble Right, Bass Left, Bass Right,Volume and Balance, rotary switches for Selector (CD, Phono,Tuner, Aux1, Aux2), Phono (MM, MC High, MC Low) and Tape Copy (Hi-Fi VCR > Tape 1/2, Source, Tape 1 > Tape 2/Hi-Fi VCR, Tape 2 > Tape 1/Hi-Fi VCR). Jack for headphones.

    Power Output per channel FTC......:  140 watts rms into 8Ω (20Hz-20kHz)
                                                            :  220 watts rms into 4Ω (20Hz-20kHz)
    Total Harmonic Distortion at 8Ω .....:  0.01% (20Hz - 20kHz)
    Intermodulation Distortion ..............:  0.01%
    Damping factor 8Ω (1 kHz) ............:  200
    Input Sensitivity :        MM ..............:  2.5mV
                                       MC ..............:  125µV (low MC); 350µV (high MC)
                                       Line .............:  150mV
    Input Impedance :      MM ..............:  47kΩ
                                       MC ..............:  3Ω (low MC); 40Ω (high MC)
                                       Line .............:  25kΩ
    Signal to Noise ratio   MM...............:  92dB (A Weighted)
                                       Line .............:  98dB (A Weighted)
    Frequency Response Line..............:  10Hz - 70kHz
    Output Voltage Tape Out ................:  465mV (Phono MM 1kHz 7.75mV Input)
    Output Impedance Tape Out ..........:  220Ω (at Phono position)
    Power Consumption .......................:  490 watts

    Versions/Power Requirements 
    110/120/220/240 V AC 50/60Hz with Voltage Selector

  • Net weight (2.2 lb = 1 kg)
  • 23 kg / 50 lb 10.6 oz (50.661 lb)
  • Mentioned in
  • - - Manufacturers Literature (1985-6 Marantz Hi-Fi Video catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual for the PM-94 Stereo Amplifier)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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