BBC Monitor Loudspeaker LS3/5A

Spendor Audio Systems Ltd.; Redhill

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  • Year
  • 1975
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 288283

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • 2 Loudspeakers
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: BBC Monitor Loudspeaker LS3/5A - Spendor Audio Systems Ltd.;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 190 x 305 x 165 mm / 7.5 x 12 x 6.5 inch
  • Notes

  • Small loudspeaker developed by the BBC to monitor and assess broadcast quality. Spendor  (and other manufacturers) were granted a licence to build and market them commercially in 1975.

    Drive units:
    • 19mm Mylar-dome tweeter KEF T27 SP1032 (KEF B110 SP1228 1987 onwards)
    • 110mm Bextrene-cone woofer KEF B110 SP1003
    Frequency response: 90 Hz - 20 kHz ± 3 dB at 1 m with grilles on.
    Sensitivity: 82.5 dB/W/m.
    Nominal impedance: 15 ohms (1975-1987); 11 ohms (1987 onward).
    Amplifier requirements: 40 W maximum.
    Internal volume: 5 litres
  • Net weight (2.2 lb = 1 kg)
  • 4.9 kg / 10 lb 12.7 oz (10.793 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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