Stereo Amplifier SA-7800 KU｜ KC

Pioneer Corporation; Tokyo

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  • Year
  • 1979–1981
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 334229

 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 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 130 W (160 W max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Stereo Amplifier SA-7800 [KU｜ KC] - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 453 x 155 x 376 mm / 17.8 x 6.1 x 14.8 inch
  • Notes

  • A hi-fi stereo amplifier housed in a wooden case with continuous power output of 2 x 65 watts into 8 ohms or 4 ohms. With a blue fluoroscan power meter, Function selector switch (Tuner, Phono, Aux), Loudspeaker selector (A, B, A+B), Loudness and Subsonic filter switches, rotary controls for Volume, Bass, Treble and Balance, Tone bypass switch, Muting switch, Mode switch, Tape Monitor switches (1,2), Tape Duplicate switch, and a jack for headphones. On the rear panel, Phono Interference filter, RCA phono sockets for input Phono, Tuner and Aux, for input/output Tape1 and Tape2, terminals for two pairs of loudspeakers (A, B), and four AC outlets 200W max., 2 switched and 2 unswitched.

    Specification  
    Power Amplifier Section
     Continuous Power Output    		  
     from 10Hz to 20,000Hz 65 watts per channel into 8Ω or 4Ω
    with no more than 0.009% THD
     from 10Hz to 50,000Hz 65W + 65W ( 8Ω, THD 0.02%)
    80W + 80W ( 4Ω, THD 0.03%)
    Intermodulation Distortion
    continuous rated power output    		 No more than 0.003%
    Damping Factor
      (20Hz to 20,000Hz, 8Ω)    		 55
    Input (Sensitivity/Impedance)  
     PHONO
     TUNER
     AUX
     TAPE PLAY 1
     TAPE PLAY 2    		 2.5mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    Output  
     TAPE REC 1
     TAPE REC 2    		 150mV
    150mV
     Speaker
     Headphones    		 A, B, A+B, (4 - 16Ω)
    Low impedance
    Frequency Response  
     PHONO (RIAA Equalization)
     TUNER, AUX, TAPE PLAY    		 20Hz to 20,000Hz ±0.2dB
    5Hz to 100,000Hz +0dB,-1dB
    Hum and Noise
    (IHF, short-circuited, A network    		  
     PHONO
     TUNER, AUX, TAPE PLAY    		 87dB
    110dB

    Semiconductors: 3 ICs, 6 FETs, 73 Transistors, 49 Diodes, 2 Others

    Versions/Power requirements
    KU USA version  /  120V AC 60Hz,
    KC Canada version  /  120V AC 60Hz

    Power consumption: 220 Watts (490VA).

    See also the Pioneer SA-7800 Stereo Amplifier HG, S & S/G variants.

  • Net weight (2.2 lb = 1 kg)
  • 12.7 kg / 27 lb 15.6 oz (27.974 lb)
  • Mentioned in
  • - - Manufacturers Literature (1979/80 and 1980/81 Pioneer Hi-Fi Stereo catalogues)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual Pioneer SA-7800)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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