Integrated Stereo Amplifier A-400X

Pioneer Corporation; Tokyo

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  • Year
  • 1993
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 307316

 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) / 220-230/240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Integrated Stereo Amplifier A-400X - 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 housed in a black metal case with continuous power output of 2 x 50 watts into 8 ohms (2  x  60 watts DIN into 8 ohms). With a 'Wide Range Linear Circuit'. No tone controls. With a rotary Volume/Balance control, push button Phono Selector switch (MM/MC), a rotary Rec Selector switch (Tuner, CD, Off, Source, Tape1→Tape2, Tape2→Tape1, and rotary Input Selector switch (Tape2,Tape1/DAT, CD, Phono, Tuner, Line). On the back, RCA phono sockets for input Phono, Line, Tuner and CD, for input/output Tape1/DAT and Tape2, and terminals for 2 pairs of loudspeakers.

    Specifications  
    Continuous Power Output
    (both channels driven
     at 20Hz—20kHz)    		  
     THD 0.02%, into 8Ω
     THD 0.03%, into 4Ω    		 50W + 50W
    70W + 70W
    DIN Continuous Power Output
    (both channels driven at 1kHz)    		  
     THD 1.0%, into 8Ω
     THD 1.0%, into 4Ω    		 60W + 60W
    85W + 85W
    Dynamic Power Output
    (on EIA dynamic test signal)
     8Ω/4Ω/2Ω 

    70W/100W/150W
    Total Harmonic Distortion
     20Hz—20kHz, 50W, 8Ω
     20Hz—20kHz, 70W, 4Ω
    0.02%
    0.03%
    Input Sensitivity/Impedance
     PHONO (MM)
     PHONO (MC)
     CD, TUNER, LINE, TAPE
    2.8mV/50kΩ
    0.24mV/100Ω
    200mV/40kΩ
    Output Level/Impedance
     TAPE REC
    200mV/1kΩ
    Frequency Response
     PHONO (MM)
     PHONO (MC)
     CD, TUNER, LINE, TAPE    		  
    20Hz—20kHz ±0.3dB
    20Hz—20kHz ±0.5dB
    1Hz—300kHz +0dB,-3dB
    Signal-to-Noise ratio
    (IHF short circuit, A network)
     PHONO (MM, 2.8mV input)
     PHONO (MC, 0.24mV input)
     CD, TUNER, LINE, TAPE

    86dB
    67dB
    110dB
    Signal-to-Noise ratio
    (DIN, continuous power/50mW)
     PHONO (MM)
     CD, TUNER, LINE, TAPE

    74dB/68dB
    93dB/71dB

    Versions/Power requirements

    HB UK AC 220-230V, 240V (switchable)
    YPW Australia AC 220-230V, 240V (switchable)
    HL Singapore AC 220-230V, 240V (switchable)

    Power consumption:  520 watts

    Similar to the earlier Pioneer A-400 Integrated Stereo Amplifier.

  • Net weight (2.2 lb = 1 kg)
  • 7.9 kg / 17 lb 6.4 oz (17.401 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Pioneer Operating Instructions for stereo amplifier A-400X)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Pioneer Service Manual for stereo amplifier A-400X dated April 1993)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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