• Country
• United States of America (USA)

• Manufacturer / Brand
• Acoustic Research Inc.; Cambridge, MA

• Year
• 1991 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 273018

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

• Power type and voltage
• Alternating Current supply (AC)

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

• Power out
• 116 W (undistorted)

• Material
• Metal case

• from Radiomuseum.org
• Model: Integrated Amplifier A-04 - Acoustic Research Inc.;

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 430 x 88 x 356 mm / 16.9 x 3.5 x 14 inch

• Notes

• Acoustic Research Integrated Amplifier Model A-04.
  Power output: 58 watts per channel into 4Ω (stereo)
  Frequency response: 20Hz to 20kHz
  Total harmonic distortion: 0.03%
  Damping factor: 120 @ 8Ω
  Input sensitivity: 0.2mV (MC), 2.5mV (MM), 150mV (line)
  Inputs: CD, Tuner, AUX, Tape, Phono MM, Phono MC
  Signal to noise ratio:70dB (MC),  80dB (MM), 96dB (line)
   
  Power Requirements:
  120VAC 60Hz
  220/240VAC 50Hz
  120/220/240VAC 50/60 Hz (depending on destination)
  Power Consumption max. 200 Watts
  
   

• Net weight (2.2 lb = 1 kg)
• 7.6 kg / 16 lb 11.8 oz (16.74 lb)

• Mentioned in
• - - Manufacturers Literature (Service Manual)

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

• Other Models

• Here you find 27 models, 27 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Acoustic Research Inc.; Cambridge, MA