Integrated Amplifier Quarter A AVSS PM-74D

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1985
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 309044

 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) / 100 or 120 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 210 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Integrated Amplifier Quarter A AVSS PM-74D - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 416 x 146 x 334 mm / 16.4 x 5.7 x 13.1 inch
  • Notes

  • A 2 x 100 watt stereo integrated amplifier 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 and with AVSS (Automatic Voltage Shift Supply), a circuit which enables the amplifier to respond instantaneously to the power demands of the wide dynamic range typical of digital recordings. Inputs for Phono, CD, Tuner, TV/Aux1, Video/Tape2, input/outputs for 2 Tape recorders, terminals for two pairs of loudspeakers and 3 AC outlets. On the front, push buttons for Power, Speakers (1, 2), Tone Defeat, Tape Copy (1 > 2), Tape Monitor (1, 2), MM/MC Phono, Loudness, Mono and CD/Phono Direct, rotary controls for Treble Left, Treble Right, Bass Left, Bass Right, Volume and Balance, and rotary switches for Selector (CD, Phono, Tuner, TV/Aux1, Video/Aux2) and Rec Out (CD, Phono, Tuner, TV/Aux1, Video/Aux 2). Jack for headphones.

    Specification
    Power Output per channel FTC .....:  105 watts rms into 8Ω (20Hz-20kHz)
    Total Harmonic Distortion at 8Ω .....:  0.03% (20Hz - 20kHz)
                                             at 4Ω .....:  0.06% (20Hz - 20kHz)
    Intermodulation Distortion at 8Ω ....:  0.03%
                                              at Ω4 ....:  0.06%
    Damping factor 8Ω (1 kHz) ............:  95
    Input Sensitivity/Impedance :
                                       MM ..............:  2.5mV/47kΩ
                                       MC ..............:  250µV/100Ω
                                       Line .............:  150mV/20kΩ
    Signal to Noise ratio   MM...............:  80dB (A weighted)
                                       MC ..............:  75dB (A weighted)
                                       Line .............:  90dB (A weighted)
    Frequency Response Line..............:  18Hz - 70kHz
    Output Voltage Tape Out ................:  490mV (Phono 1kHz 7.75mV Input)
    Output Impedance Tape Out ..........:  220Ω (In Phono position)
    Power Consumption .......................:  380 watts

    Version/Power Requirements
    100 V AC 50/60 Hz
    120 V AC 60Hz

  • Net weight (2.2 lb = 1 kg)
  • 10.5 kg / 23 lb 2 oz (23.128 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's Manual for the PM-74D Integrated Amplifier dated 9/1/85)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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