Stereo Amplifier SA-706

Pioneer Corporation; Tokyo

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  • Year
  • 1978/1979
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 215325

 Technical Specifications

  • Number of Transistors
  • 31
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 220/240; 110/120/220/240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 120 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Amplifier SA-706 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 147 x 327 mm / 16.5 x 5.8 x 12.9 inch
  • Notes

  • A hi-fi stereo integrated amplifier housed in a metal case with continuous power output of  2 x 60 watts into 8 ohms. Power supply with discrete and separate transformers and two 12,000µF electrolytic capacitors separately feed Class-A operation preamplifier and Class-B operation power amplifier.Two power level meters, terminals for two pairs of loudspeakers, jack for headphones.

    Specification  
    Amplifier Section  
    Circuitry

         		 1st stage current mirror loaded
    differential amplifier, constant current
    loaded all-stage direct-coupled OCL.
    Continuous power output

         		 60 watts per channel, min., into 8Ω
    from 20Hz — 20,000Hz
    with no more than 0.04% THD
    Total Harmonic Distortion
    (20Hz — 20,000Hz, from AUX)    		  
    Continuous rated power output
    30W per channel power output, 8Ω    		 No more than 0.04%
    No more than 0.03%
    Intermodulation Distortion  
    Continuous rated power output
    30W per channel power output, 8Ω    		 No more than 0.05%
    No more than 0.02%
    Output
     Speaker
    A, B, A+B
    Damping Factor
    (20Hz — 20,000Hz, 8Ω)
    40
    Inputs
    Sensitivity/Impedance    		  
     PHONO
     TUNER
     AUX
     TAPE PLAY 1
     TAPE PLAY 2
     TAPE PLAY 2 (DIN, HG model)    		 2.5mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    Outputs
    Level/Impedance    		  
     TAPE REC 1
     TAPE REC 2
     TAPE REC 2 (DIN, HG model)    		 150mV
    150mV
    30mV/80kΩ
    Frequency Response  
     PHONO (RIAA Equalization)
     TUNER, AUX, TAPE PLAY    		 20Hz — 20,000Hz ±0.2dB
    20Hz — 40,000Hz ±2dB
    Hum and Noise
    (IHF, short-circuited, A network)    		  
     PHONO
     TUNER, AUX, TAPE PLAY    		 86dB (Phono interference filter off)
    95dB
    Hum and Noise
    (DIN, continuous power/50mW)    		  
     PHONO
     AUX    		 58dB/70dB
    60dB/85dB

    Semiconductors: 1 IC, 31 Transistors, 29 Diodes

    Versions/Power requirements
    HG  /  220/240V AC 50/60Hz with voltage selector
    S     /  110/120/220/240V AC 50/60Hz with voltage selector
    S/G /  110/120/220/240V AC 50/60Hz with voltage selector

    Power consumption: 520 watts (HG), 160 watts (S, SG)

    The Pioneer SA-7700 Stereo Amplifier in a wooden case is similar.

  • Net weight (2.2 lb = 1 kg)
  • 10.5 kg / 23 lb 2 oz (23.128 lb)
  • Mentioned in
  • -- Original prospect or advert (Pioneer Hi-Fi Stereo 1978/79 Catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Pioneer SA-7700 and SA-706)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Operating Instructions Pioneer SA-706)
  • Author
  • Model page created by Jacky Parmentier. See "Data change" for further contributors.

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