• Country
• United States of America (USA)

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

• Year
• 1978

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 141474

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• 3 Loudspeakers

• Material
• Wooden case

• from Radiomuseum.org
• Model: AR10π - Acoustic Research Inc.;

• Dimensions (WHD)
• 354 x 635 x 273 mm / 13.9 x 25 x 10.7 inch

• Notes

• Acoustic Research 3-Way HiFi-Speaker System Model AR10π (Pi)

  Type: 3 way, 3 driver loudspeaker system, 27 - 30000Hz

  Recommended Amplifier: 25 to 150W

  Crossover Frequency: 525, 5000Hz

  Impedance: 4 - 8 Ω (depending on switch positions)

  three 3-position switches:
  for woofer environmental control and for midrange and highrange level control

  Sensitivity: 86dB

  Drivers:
  Bass: 1 x 300mm acoustic suspension - Resonance Frequency 18Hz - 9800 gauss
  Midrange: 1 x 38mm hemispherical dome - Resonance Frequency 400Hz - 13000 gauss
  Tweeter: 1 x 19mm hemispherical dome - Resonance Frequency 2000Hz - 14000 gauss
  Volume of enclosure - 41,9 litres

  Optional:
  Floor stands

• Net weight (2.2 lb = 1 kg)
• 24.9 kg / 54 lb 13.5 oz (54.846 lb)

• Source of data
• -- Original prospect or advert

• Mentioned in
• Acoustic Research Catalogue 1978 - The truth in listening

• 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