Stereo Amplifier A-7

Pioneer Corporation; Tokyo

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  • Year
  • 1980–1982
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 151097

 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) / 120; 220/240; 110/120/220/240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 140 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Amplifier A-7 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 132 x 423 mm / 16.5 x 5.2 x 16.7 inch
  • Notes

  • A hi-fi stereo "Non-Switching" integrated amplifier housed in a champagne gold metal case with a Pictographic display, with continuous power output of 2 x 70 watts into 8 ohms. LED power meter. Terminals for 2 pairs of loudspeakers, jack for headphones.

    Integrierter "Non-Switching"-Stereo-Verstärker in Gleichstrom-Servotechnik; Pictographische Anzeige. 2 x 85 Watt Sinus an 8 Ohm (DIN).

    Specification  
    Continuous Power Output

         		 70 watts per channel min. into 8Ω
    from 20Hz — 20,000Hz
    with no more than 0.007% THD
    Total Harmonic Distortion
    (20Hz — 20,000Hz, 8Ω from TUNER)    		  
     Continuous rated output
     35 watts per channel output    		 No more than 0.007%
    No more than 0.005%
    Intermodulation Distortion
    8Ω, from TUNER    		  
     Continuous rated output
     35 watts per channel output    		 No more than 0.005%
    No more than 0.003%
    Damping Factor
    (20Hz — 20,000Hz, 8Ω)
    60
    Input Sensitivity/Impedance  
     PHONO MM
     PHONO MC
     TUNER, AUX, TAPE PLAY 1,2    		 2.5mV/50kΩ
    0.25mV/100Ω
    150mV/50kΩ
    Output Level
     TAPE REC 1, 2
     Speaker
    150mV
    A/OFF, B/OFF (6—16Ω)
    Frequency Response  
     PHONO MM (RIAA Equalization)
     TUNER, AUX, TAPE PLAY 1,2    		 20Hz — 20,000Hz ±0.3dB
    5Hz — 100,000Hz +0dB,-3dB
    Filter
     LOW (SUBSONIC)
    20Hz (6dB/oct.)
    Hum and Noise
    (IHF, short circuited A network)    		  
     PHONO MM
     PHONO MC
     TUNER, AUX, TAPE PLAY 1,2    		 88dB
    70dB
    110dB
    Hum and Noise
    (DIN, continuous rated output/50mW)    		  
     PHONO MM
     PHONO MC
     TUNER, AUX, TAPE PLAY 1,2    		 80dB/66dB
    70dB/65dB
    95dB/69dB

    Versions/Power requirements

    KU USA 120V AC 60Hz
    KC Canada 120V AC 60Hz
    HE Europe 220V/240V AC 50/60Hz with voltage selector
    HEZ Europe 220V/240V AC 50/60Hz with voltage selector
    HB UK 240V/220V AC 50/60Hz with voltage selector
    S General 110V/120V/220V/240V AC 50/60Hz with voltage selector
    S/G US Military 110V/120V/220V/240V AC 50/60Hz with voltage selector

     

  • Net weight (2.2 lb = 1 kg)
  • 12.2 kg / 26 lb 14 oz (26.872 lb)
  • Source of data
  • -- Original prospect or advert
  • Mentioned in
  • Advertisement - Discoteca Hi-Fi, May 1981 - Italy
  • Literature/Schematics (1)
  • - - Manufacturers Literature (1981/82 Pioneer Hi-Fi Stereo catalogue)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Service manual Pioneer A-7 dated Dec 1980)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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