Sony APM-77 W

Data

General

  • Manufacturer: Sony
  • Model: APM-77, APM-77 W
  • Type: Loudspeaker
  • Years of manufacture: 1981 - 1988
  • Made in: Japan
  • Colors: American Walnut, Black
  • Dimensions: 405 x 745 x 325 mm (WxHxD)
  • Weight: 34,5 kg
  • Original price approx.: 1'998 DM


Technical data

  • Type: 3-way bass reflex
  • Chassis:
    • Low frequency: 230 x 230 mm flat diaphragm with 4 voice coils.

Midrange: 52 x 52 mm flat diaphragm tweeter: 26 x 26 mm flat diaphragm Power handling (nominal/music): 100 W / 200 W

  • Efficiency: 90 dB / W / m
  • Frequency response: 28 - 30'000 Hz
  • Transitional ranges: 700 Hz, 4'500 Hz
  • Impedance: 6 Ohm


Special Features

  • Square flat diaphragms
  • Level control for midrange and tweeter


Remarks


Pictures

  • Extract from brochure: Sony APM-77

Sony APM-77 W-Prospekt-1984.jpg


  • Extract from brochure: Sony APM-77 W

Sony APM-77 W-Prospekt-1984.jpg


Reports

Links

  • External link to website "The Vintage Knob": [1]