Integrated Stereo Amplifier A-400

Pioneer Corporation; Tokyo

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  • Year
  • 1990
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 131882

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 100 W (140 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Integrated Stereo Amplifier A-400 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 126 x 352 mm / 16.5 x 5 x 13.9 inch
  • Notes

  • A Hi-Fi stereo integrated amplifier with a 'Super Linear Circuit'. With push button Phono Selector switch (MM/MC), rotary Rec Selector switch (Tuner, CD, Off, Source, Tape1→Tape2, Tape2→Tape1, rotary Input Selector switch (Tape2, DAT/Tape1, CD, Phono, Tuner, Line) a jack for Phones but no tone controls. On the back, RCA phono sockets for input Phono, Line, Tuner and CD, for input/output DAT/Tape1 and Tape2, and terminals for 1 pair of loudspeakers.

    Specification  
    Continuous power output,
    both channels driven at 20Hz-20kHz    		  
      Into 8Ω
      Into 4Ω    		 50W + 50W  THD 0.03%
    70W + 70W  THD 0.05%
    DIN Continuous power output
    (both channels driven at 1kHz)    		  
      Into 8Ω
      Into 4Ω    		 60W + 60W  THD 1.0%
    85W + 85W  THD 1.0%
    Dynamic power output
    (on EIA dynamic test signal)    		 70W/100W/135W (8Ω/4Ω/2Ω)
    Total harmonic distortion  
      20Hz to 20kHz, 50W, 8Ω
      20Hz to 20kHz, 70W, 4Ω    		 0.03%
    0.05%
    Frequency Response  
      Phono (MM)
      Phono (MC)
      CD, Tuner, Line and Tape    		 20Hz to 20kHz, ±0.3dB
    20Hz to 20kHz, ±0.5dB
    5Hz to 100kHz, +0dB,-3dB
    Input Sensitivity/Impedance  
      Phono (MM)
      Phono (MC)
      CD, Tuner, Line and Tape :    		 2.5mV/50kΩ
    0.2mV/100Ω
    150mV/50kΩ
    Output Level/Impedance  
      Tape Rec 150mV/2.2kΩ
    Signal-to-Noise ratio
    (IHF short circuit, A network)    		  
      Phono (MM, 2.5mV input/MC, 0.2mV input)
      CD, Tuner, Line and Tape    		 87dB/69dB
    108dB

    Versions/Power requirements

    HB United Kingdom AC 220-240 50/60Hz (internally switchable)

    Power consumption: 520 W

    Similar to the later Pioneer A-400X Integrated Stereo Amplifier.

  • Net weight (2.2 lb = 1 kg)
  • 8 kg / 17 lb 9.9 oz (17.621 lb)
  • Price in first year of sale
  • 290.00 GBP
  • Source of data
  • - - Data from my own collection
  • Mentioned in
  • - - Manufacturers Literature (Pioneer Service Manual for stereo amplifier A-400 & A-300 dated May 1990)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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