Reference Stereo Amplifier A-878

Pioneer Corporation; Tokyo

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  • Year
  • 1991/1992
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 218667

 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).
  • Power out
  • 210 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Reference Stereo Amplifier A-878 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 172 x 469 mm / 16.5 x 6.8 x 18.5 inch
  • Notes

  • A hi-fi stereo integrated amplifier housed in a black metal case with continuous power output of 2 x 105 watts into 8 ohms, 2 x 160 watts into 4 ohms. With anti-resonance and anti-vibration honeycomb chassis, heat sinks and insulators, Pioneer's Clean Ground System, Super linear circuit and Direct connection II. With Bass and Treble tone controls, push button switches for Phono EQ, Loudness, ADPT1/TAPE3, Direct and Muting, rotary switch for Speakers (A, B, A+B, OFF) and Phono selector (MM, MC, MM Subsonic, MC Subsonic) and a jack for headphones. On the back, RCA phono sockets for input PHONO, LINE, TUNER and CD, for input/output DAT/TAPE1, TAPE2, ADAPT1/TAPE3 and ADAPT2 (I/O connected together with removable links) and terminals for 2 pairs of loudspeakers   (A, B).

    Specification  
    Continuous Rated Power Output:
    (20—20,000Hz, THD 0.007%) into 8Ω
    105W + 105W
    (20—20,000Hz, THD 0.009%) into 4Ω 160W + 160W
    1kHz (DIN) into 8Ω
                       into 4Ω    		 120W + 120W
    180W + 180W
    Dynamic Power Output (4/2Ω) 250W/400W
    Total Harmonic Distortion
    continuous rated power output
     (20—20,000Hz, 8Ω)
     (20—20,000Hz, 4Ω)

    0.007%
    0.009%
    Input Sensitivity/Impedance
     PHONO (MM)
     PHONO (MC)
     CD, TUNER, AUX, TAPE
    2.5mV/50kΩ
    0.2mV/100Ω
    150mV/50kΩ
    Output Level/Impedance
     TAPE REC
     SPEAKERS
     HEADPHONES
    150mW/2.2kΩ
    A, B, A+B, OFF
    low impedance
    Frequency Response
     PHONO (RIAA Equalisation)
      MM
      MC
     CD,TUNER,AUX,TAPE

    20—20,000Hz ±0.2dB
    20—20,000Hz ±0.3dB
    1—150,000Hz +0dB,-3dB
    Subsonic Filter 17Hz (-12dB/oct.)
    Signal-to-Noise Ratio
    (IHF short-circuited A network)
     PHONO (MM, 5mV input)
     PHONO (MC, 0.5mV input)
     CD,TUNER,AUX,TAPE

    94dB
    76dB
    110dB
    Signal-to-Noise Ratio
    (DIN continuous rated power output)
     PHONO(MM)
     CD,TUNER,AUX,TAPE

    74dB/72dB
    93db/81dB

    2 x 120 Watt Sinusleistung (8 Ohm) DIN
    2 x 180 Watt Sinusleistung (4 Ohm) DIN

    Versions/Power requirements
    HEZ  /  220-230/240V AC 50/60Hz switchable

    Power consumption:  1000 Watts (max.)

  • Net weight (2.2 lb = 1 kg)
  • 24.7 kg / 54 lb 6.5 oz (54.405 lb)
  • Source of data
  • -- Original prospect or advert
  • Mentioned in
  • - - Manufacturers Literature (1992 Pioneer Hi-Fi components catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Pioneer A-51 A-777 A-878 dated May 1991)

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