Stereo Power Amplifier 140

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1976/1977
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 115870

 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; 120; 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 150 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Power Amplifier 140 - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 14.125 x 4.75 x 10.75 inch / 359 x 121 x 273 mm
  • Notes

  • A hi-fi stereo power amplifier with output power of 75 watts RMS per channel into 8 ohms, housed in a metal cabinet (a walnut wooden cabinet optional). With Left and Right channel power meters, left and right channel peak indicators, rotary controls for Left Gain and Right Gain, RCA phono input sockets, terminals for 1 pair of loudspeakers and an AC outlet (100 watts max.) on some models.

    Specification  
    Rated Power Output  
     Continuous average power
     both channels driven into 8Ω
     Power Band 20Hz to 20kHz
     Total Harmonic Distortion 0.1%    		 75 Watts per channel
    Input Sensitivity 1.5V for Rated Power Output
    Frequency Response Within ±0.25 dB at 1 Watt Output
    Intermodulation Distortion Less than 0.15% at Rated Power Output
    Damping Factor Greater than 30 into 8Ω Load
    Total Noise from Input to Output -98 dB

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

    Power Consumption at Rated Power Output:  250 Watts (Nominal)

    Designed in USA, Produced in Japan

  • Net weight (2.2 lb = 1 kg)
  • 24.5 lb (24 lb 8 oz) / 11.123 kg
  • Source of data
  • -- Original-techn. papers.
  • Mentioned in
  • -- Original prospect or advert (1976-77 Hauptkatalog and three 1977 Marantz catalogues)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Marantz 140 European model)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Service manual Marantz 140 USA model)
  • Literature/Schematics (3)
  • - - Manufacturers Literature (Handbook of Instructions Marantz 140)

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