Stereo Receiver SX-440

Pioneer Corporation; Tokyo

  • Year
  • 1969–1971
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 127892

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

 Technical Specifications

  • Number of Transistors
  • 32
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 455/10700 kHz
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 117; 110/117/130/220/240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 24 W (30 W max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Stereo Receiver SX-440 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 405 x 139 x 358 mm / 15.9 x 5.5 x 14.1 inch
  • Notes
  • A stereo hi-fi receiver with an AM/FM stereo tuner and an integrated amplifier with output power of 2 x 12 watts RMS into 8 ohms or 2 x 15 watts RMS into 4 ohms. Total music power of 2 × 20 watts (IHF) into 4 ohms. Housed in a metal case (outer wooden cabinet optional) with a front panel made of black scratch-resistant acrylic glass with engraved lettering with black metal buttons. FM input section with FETs and a 3-gang variable capacitor.

    UKW-Eingangsteil mit Feldeffekttransistoren und Dreifachdrehkondensator. Empfindlichkeit: 2,5 µV bei einer Kreuzmodulationsunterdrückung von 96 dB. Mittelwellen-Empfindlichkeit 8 µV. NF-Leistung 2× 20 Watt Musikleistung bei 4 Ohm Anpassungswiderstand.
    Frontplatte aus schwarzem, kratzfestem Acrylglas mit eingravierter Beschriftung und schwarzen Metallknöpfen.

    Specification  
    Audio Section  
    Rated Power Output
    (both channels driven)
    15W + 15W into 4Ω RMS
    12W + 12W into 8Ω RMS
    Music Power Output 40W total (IHF) into 4Ω
    33W total (IHF) into 8Ω
    Harmonic Distortion < 1% (at 1kHz)
    Frequency Response 20Hz - 70kHz ±3dB
    Power Bandwidth 30Hz - 20kHz (AUX)
    Inputs  
    Audio Sensitivity (for rated output)  
    MAGnetic PHONO
    TAPE MONITOR
    AUXiliary
    3mv
    130mv
    130mv
    Output  
    Terminals and Jacks Speakers: 4-16 ohms
    Stereo headphones jack
    Simultaneous tape Recording jacks,
    equipped with TAPE MONITOR switch
    Tape recording/playback jack (DIN)
    Equalization Curve PHONO: RIAA
    FM Section  
    Frequency Range 87-108MHz
    IHF Usable Sensitivity 2.5µV
    Image Rejection 55dB (at 98MHz)
    S/N Ratio 50dB (IHF)
    Antenna Input  300Ω balanced
    Channel Separation 35dB (at 1kHz)
    AM Section  
    Frequency Range 525 - 1605kHz
    IHF Usable Sensitivity 8µV (10µV K version)
    Image Rejection 47dB (at 1000kHz)
    Antenna Input Built-in ferrite loopstick antenna

    Semiconductors: 1 FET, 31 Transistors, 23 Diodes

    Versions/ Power Requirements

    K USA, Canada 117V 60Hz
    F, W General Export 110/117/130/220/240V AC 50/60Hz with voltage selector

    Power consumption:  80 watts max.

  • Net weight (2.2 lb = 1 kg)
  • 7.7 kg / 16 lb 15.4 oz (16.96 lb)
  • Price in first year of sale
  • 887.00 DM
  • Source of data
  • - - Data from my own collection
  • Mentioned in
  • - - Manufacturers Literature (1970 & 1971 Pioneer Stereo Components catalogues)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Installation, Operating and Service manual Pioneer SX-440 K & F/W versions)

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