Stereo Amplifier SA-508

Pioneer Corporation; Tokyo

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  • Year
  • 1979/1980
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 213740

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

 Technical Specifications

  • Number of Transistors
  • 21
  • 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
  • 50 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Amplifier SA-508 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 150 x 271 mm / 16.5 x 5.9 x 10.7 inch
  • Notes

  • A hi-fi stereo integrated amplifier housed in a metal case with continuous power output of 2 x 25 watts into 8 ohms. With a fluorescent power meter display, 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, Tape Monitor switches (1,2), and a jack for headphones. On the back, RCA phono sockets for input Phono, Tuner and Aux and for input/output Tape1 and Tape2, DIN socket for Tape2 Rec/PB, terminals for two pair of loudspeakers and 3 AC outlets.

    Specification  
    Amplifier Section  
    Continuous Power output: 25 watts per channel into 8Ω
    from 20Hz to 20kHz
    with no more than 0.03% THD 
    25 watts per channel into 4Ω
    from 20Hz to 20kHz
    with no more than 0.05% THD
    lntermodulation Distortion
     8Ω from AUX    		 No more than 0.03%
    Output  
     Speaker
     Headphones    		 A, B, A+B  4-16Ω
    Low impedance
    Damping Factor (1kHz, 8Ω) 30
    Input (Sensitivity/Impedance)  
     PHONO
     TUNER
     AUX
     TAPE PLAY 1
     TAPE PLAY 2    		 2.5mV/47kΩ
    150mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    Output  
     TAPE REC 1
     TAPE REC 2    		 150mV
    150mV
    Frequency Response  
     PHONO (RIAA Equalization)
     TUNER, AUX, TAPE PLAY    		 30Hz-15kHz ±0.5dB
    20Hz-40kHz ±2dB
    Hum and Noise
    (IHF, short-circuited, A network)    		  
     PHONO
     TUNER, AUX, TAPE PLAY    		 76dB
    98dB

    Semiconductors: 3 ICs, 21 Transistors, 18 Diodes

    Versions/Power requirements

    KU USA 120V only
    HE Europe 220V and 240V
    HB UK 220V and 240V
    HP Oceania 220V and 240V
    S General export 110V, 120V, 220V, and 240V (Switchable)

    Power consumption:  75 watts

    Same as the Pioneer SA-5800 Stereo Amplifier which is housed in a wooden case.

  • Net weight (2.2 lb = 1 kg)
  • 6.7 kg / 14 lb 12.1 oz (14.758 lb)
  • Mentioned in
  • -- Original prospect or advert (Pioneer Hi-Fi Stereo 1979/80 Catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual Pioneer SA-5800 SA-508 dated May 1979)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Pioneer SA-5800 brochure)

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