Stereo Amplifier A-9

Pioneer Corporation; Tokyo

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  • Year
  • 1980–1982
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 142917

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • 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
  • 220 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Amplifier A-9 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 150 x 443 mm / 16.5 x 5.9 x 17.4 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 110 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 140 Watt Sinus an 8 Ohm (DIN).
    Eingänge: Plattenspieler, 2 TB, Tuner, AUX.
    Ausgänge: 2 Paar LS, Kopfhörer.

    Specification  
    Continuous Power Output


         		 110 watts per channel, min., into 8Ω
    from 20Hz — 20,000Hz
    with no more than 0.003% THD
    Total Harmonic Distortion
    (20Hz — 20,000Hz, 8Ω, from TUNER)    		  
     Continuous rated output
     55 watts per channel output    		 No more than 0.003%
    No more than 0.003%
    Intermodulation Distortion
    (8Ω, from TUNER)    		  
     Continuous rated output
     55 watts per channel output    		 No more than 0.005%
    No more than 0.003%
    Damping Factor
    (20Hz to 20,000Hz, 8Ω)    		 60
    Input Sensitivity/Impedance  
     PHONO MM
      MM load capacitance
     PHONO MC
      MC load resistance
     TUNER, AUX, TAPE PLAY 1, 2    		 2.5mV/50kΩ
     100, 200, 300, 400 pF
    0.1mV/100Ω
     33,100Ω    
    150mV/50kΩ
    Output Level/Impedance  
     TAPE REC 1, 2
     Speaker    		 150mV/50kΩ
    A/OFF, B/OFF (4—16Ω)
    Frequency Response  
     PHONO (RIAA Equalization)
     TUNER, AUX, TAPE PLAY 1 , 2    		 20Hz — 20,000Hz ±0.2dB
    5Hz — 200,000Hz +0dB,-3dB
    Filter
     LOW (SUBSONIC)    		  
    20Hz (12dB/oct.)
    Hum and Noise
    (IHF, short circuited A network)    		  
     PHONO MM
     PHONO MC
     TUNER, AUX, TAPE PLAY 1, 2    		 90dB
    74dB
    110dB
    Hum and Noise
    (DIN, continuous rated output/50mW)    		  
     PHONO MM
     PHONO MC
     TUNER, AUX, TAPE PLAY 1, 2    		 80dB/68dB
    75dB/70dB
    95dB/70dB

    Versions/Power requirements

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

     

  • Net weight (2.2 lb = 1 kg)
  • 16 kg / 35 lb 3.9 oz (35.242 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-9 dated Dec 1980)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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