• Country
• Japan

• Manufacturer / Brand
• Pioneer Corporation; Tokyo

• Year
• 1981/1982

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 151098

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

• 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) / 120; 240; 220/240; 110/120/220/240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 120 W (undistorted)

• Material
• Metal case

• from Radiomuseum.org
• Model: Stereo Amplifier A-6 - Pioneer Corporation; Tokyo

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 420 x 98 x 367 mm / 16.5 x 3.9 x 14.4 inch

• Notes

• A hi-fi stereo "Non-Switching" integrated amplifier housed in a champagne gold metal case with a Pictographic display, with continuous power output of 2 x 60 watts into 8 ohms. LED power meter. Terminals for 2 pairs of loudspeakers, jack for headphones.

  Integrierter "Non-Switching"-Stereo-Verstärker in Gleichstrom-Servotechnik; Pictographische Anzeige. 2 x 75 Watt Sinus an 8 Ohm (DIN).

  Specification
  Circuit	Non-switching Amp using high speed  bias servo-control circuit in power   stage. OCL and ICL configuration       obtained by using dual FET differential  input amp and DC servo-control circuit.
  Continuous Power Output	60 watts per channel, min. into 8Ω from 20Hz — 20,000Hz with no more than 0.008% THD
  Total Harmonic Distortion (20Hz — 20,000Hz, 8Ω from AUX)
  Continuous rated output  30 watts per channel output	No more than 0.008% No more than 0.006%
  IM Distortion 8Ω, from AUX)
  Continuous rated output  30 watts per channel output	No more than 0.006% No more than 0.004%
  Damping Factor (20Hz — 20,000Hz, 8Ω)	60
  Input Sensitivity/Impedance
  PHONO MM  PHONO MC  TUNER, AUX, TAPE PLAY 1,2	2.5mV/50kΩ 0.25mV/100Ω 150mV/50kΩ
  Output (Level/Impedance)
  TAPE REC 1,2  Speaker	150mV/2.7kΩ A/OFF, B/OFF (6—16Ω)
  Frequency Response
  PHONO MM (RIAA Equalization)  TUNER. AUX. TAPE PLAY 1,2	20Hz—20,000Hz ±0.2dB 5Hz—100,000Hz -0dB,-3dB
  Filter
  LOW (SUBSONIC)	15Hz (6dB/oct.)
  Hum and Noise (IHF, short-circuited A network)
  PHONO MM  PHONO MC  TUNER, AUX, TAPE PLAY 1,2	86dB 70dB 100dB
  Hum and Noise (DIN, continuous Power/50mW)
  PHONO MM                MC  TUNER, AUX, TAPE PLAY	80dB/66dB 70dB/65dB 95dB/69dB

  Versions/Power requirements

  KU	USA	120V AC 60Hz
  KC	Canada	120V AC 60Hz
  HE	Europe	220V/240V AC 50/60Hz (Switchable)
  HB	UK	240V/220V AC 50/60Hz (Switchable)
  YP	Australia	240V AC 50/60Hz
  S	General	110V/120V/220V/240V AC 50/60Hz with voltage selector

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Source of data
• -- Original prospect or advert

• Mentioned in
• - - Manufacturers Literature (1981/82 Pioneer Hi-Fi Stereo catalogue)

• Literature/Schematics (1)
• - - Manufacturers Literature (Service manual Pioneer A-6 dated Apr 1981)

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 1147 models, 1131 with images and 201 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Pioneer Corporation; Tokyo