Electronic Crossover Network SF-700

Pioneer Corporation; Tokyo

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  • Year
  • 1970–1972
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 335467

 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; 110/120/130/220/240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Electronic Crossover Network SF-700 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 300 x 115 x 254 mm / 11.8 x 4.5 x 10 inch
  • Notes

  • A hi-fi Stereo Electronic Crossover unit housed in a metal case with wood trim, for use with the Pioneer SC-700 Stereo Preamplifier and Pioneer SM-700 Power Amplifiers. Used with a stereo preamplifier, it is the link to the main amplifier stage in a 2-Channel or 3-Channel multi-amp system, providing complete control, matching source, speaker systems and individual room acoustics. The most suitable crossover frequencies, and the cutoff characteristics at the crossover points are easily chosen and controlled.

    Specifications  
    CHANNELS  
    2 channels
    3 channels    		 LOW Range & HIGH Range
    LOW Range, MID Range & HIGH Range
    Input Impedance 100Ω at 1kHz
    Output Voltage 3.5V (each channel)
    Output Impedance < 200kΩ at 1kHz
    Load Impedance > 20kΩ at 1kHz
    Harmonic Distortion < 0.3%
    Insertion Loss < -2dB
    S/N Ratio > 85dB
    CROSSOVER FREQUENCY
    For 3 channels    		  
     LOW-MID
     MID-HIGH    		 125Hz,250Hz,500Hz,700Hz,1kHz
    1kHz,2kHz,4kHz,6kHz,8kHz
    For 2 channels 125Hz,250Hz,500Hz,700Hz,
     1kHz,2kHz,4kHz,6kHz,8kHz
    Slope Selectors  
     LOW
     MID-L
     MID-H
     HIGH    		 6dB/oct. 12dB/oct. 18dB/oct.
    6dB/oct. 12dB/oct. 18dB/oct.
    6dB/oct. 12dB/oct. 18dB/oct.
    6dB/oct. 12dB/oct. 18dB/oct.
    CENTER CHANNEL OUTPUT TERMINAL  
    Output Impedance
    Load Impedance    		 4kΩ at 70Hz
    > 4kΩ at 70Hz

    Semiconductors:  20 Transistors, 2 Diodes

    Versions/Power requirements
    KL USA  /  120V AC 60Hz
    KC Canada  /  120V AC 60Hz
    FV General Export  /  110/120/130/220/240V AC 50/60Hz with voltage selector

    Power consumption:  5VA max., 3 watts max.

    Sold in Japan as the Pioneer SF-70 Electronic Crossover Network.

  • Net weight (2.2 lb = 1 kg)
  • 4.1 kg / 9 lb 0.5 oz (9.031 lb)
  • Mentioned in
  • - - Manufacturers Literature (1970 & 1972 Pioneer Hi-Fi catalogues and SF-700 brochure)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Installation, Operating and Service manual Pioneer SF-700)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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