Monitor Loudspeaker with Acoustic Transmission Line R50

Cambridge Audio (Laboratories, Research, Partnership) Ltd.; St. Ives, Huntingdon (later London)

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  • Year
  • 1972
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 322136

 Technical Specifications

  • Power type and voltage
  • No Power needed
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Monitor Loudspeaker with Acoustic Transmission Line R50 - Cambridge Audio Laboratories,
  • Shape
  • Miscellaneous shapes - described under notes.
  • Dimensions (WHD)
  • 448 x 1414 x 331 mm / 17.6 x 55.7 x 13 inch
  • Notes

  • The R50 Monitor Loudspeaker features the KEF B139, low frequency driver, active from approximately 30 to 400 Hz and  is loaded with a 2 Metre, long haired lambs-wool damped, tapered labyrinth. Above it, the KEF B110 mid-range driver, active from 400 Hz to 3 kHz mounted in a physically separate damped tapered pipe, to avoid intermodulation distortion. Next a KEF T27,  medium frequency unit with pressure driven dome diaphragm ensuring wide dispersion of frequencies from 3 to 10 kHz. Finally, a STC 4001G1, high frequency unit as above to carry the response from 10 kHz to beyond 20 kHz.

    Power Handling: 25 Watts (RMS)

    Impedance: 8 Ω

    Crossover: 400 Hz, 3.0 kHz, 10.0 kHz.

    Frequency Response: 25 Hz - 20 kHz

    Crossover Frequencies: 400Hz, 3kHz, 10kHz

     

  • Net weight (2.2 lb = 1 kg)
  • 44.4 kg / 97 lb 12.8 oz (97.797 lb)
  • Mentioned in
  • -- Original prospect or advert (The Gramophone, June 1972, Page 133)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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