Reverberation Amplifier SR-303

Pioneer Corporation; Tokyo

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  • Year
  • 1980–1982
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 115146

 Technical Specifications

  • Number of Transistors
  • 20
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 120; 110/120/220/240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Reverberation Amplifier SR-303 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 99 x 336 mm / 16.5 x 3.9 x 13.2 inch
  • Notes

  • A reverberation amplifier housed in a wooden case with a reverberation effect indicator display. With a TIME control that allows the delay time to be adjusted continuously, a DEPTH control which allows the depth of the reverberation to be adjusted continuously and two reverberation effect modes, EFFECT-1 and EFFECT-2. With an input signal Attenuation switch.

    Jacks
    REVERBERATION INPUT
    Connect to the TAPE REC jacks on the stereo amplifier or to the PREAMP OUT jacks on the preamplifier.

    REVERBERATION OUTPUT
    Connect to the TAPE PLAY jacks on the stereo amplifier or to the POWER AMP IN  jacks on the power amplifier.

    TAPE REC
    Connect INPUT jacks on the tape deck.

    TAPE PLAY
    Connect to the OUTPUT jacks on the tape deck.

    Echo-Hallverstärker mit jeweils stufenlos einstellbarer Verzögerungszeit und Hall-Sättigung. Es besteht die Möglichkeit der Aufnahme des effekt-gespeisten Signals über ein angeschlossenes Tonbandgerät.

    Specification  
    Input (Sensitivity/Impedance)
    (at 1kHz, DEPTH volume: 0)    		 150mV/50kΩ
    Frequency Response
    (at DEPTH volume: 0)    		 5Hz — 70kHz ±1dB
    Total Harmonic Distortion      
    (at 1kHz, 1V, DEPTH volume: 0)    		 < 0.05%
    Maximum Input Level
    (at 1kHz, 1V, DEPTH volume: 0)    		 2V
    Signal to Noise Ratio          
    (at 1V, DEPTH volume: 0)    		 90dB
    Reverberation Time 0 to 3 sec (at  EFFECT 1, 400Hz)
    25msec to 100msec (at  EFFECT 2, 400Hz)
    Output (Level/Impedance)
    (at 1kHz, DEPTH volume: 0)    		 150mV/1kΩ

    Semiconductors: 8 ICs, 1 FET, 20 Transisitors, 16 Diodes

    Versions/Power requirements
    KU  USA                 /  120V AC 60Hz
    S   General export  /  110V, 120V, 220V and 240V AC 50/60Hz (with voltage selector)
    S/G US Military       /  110V, 120V, 220V and 240V AC 50/60Hz (with voltage selector)

    Power consumption: 13W

  • Net weight (2.2 lb = 1 kg)
  • 4.3 kg / 9 lb 7.5 oz (9.471 lb)
  • Price in first year of sale
  • 195.00 $
  • Source of data
  • - - Data from my own collection
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual SR-303)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (1980/81 & 1981/2 Pioneer Hi-Fi Stereo catalogues)
  • Literature/Schematics (3)
  • - - Manufacturers Literature (Operating Instructions Pioneer SR-303)
  • Author
  • Model page created by Peter Böhm. See "Data change" for further contributors.

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