Model FX 5FX 8 ohms

Rola Company (AUS) Pty. Ltd.; Melbourne

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  • Year
  • 1968 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 350916

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Model FX 5FX [8 ohms] - Rola Company AUS Pty. Ltd.;
  • Shape
  • Miscellaneous shapes - described under notes.
  • Notes

  • "The latest version of the highly regarded twin cone 5FX tweeter is used in the Mini-fi system. Improvements in voice coil design and throat felting and pressing have upgraded the performance to provide a smooth response from cross-over to 19,000 Hz ± 6 dB. A simple protective capacitor isolates the bass frequencies from the 5FX and in practical terms is highly preferable to the use of complex multi-element reactive networks at the cross-over point."

    5FX twin cone tweeter 5" diameter
      9,300 gauss gap flux density
      18,600 maxwell total flux
    Frequency response 4,000 Hz - 19,000 Hz± 6dB
    Voice coil diameter ¾"
    Voice coil impedance 8 ohms at 4,000 Hz

    See also 15 ohm version. Branded "Plessey" after 1972.

  • Literature/Schematics (1)
  • -- Original-techn. papers. (Plessey Rola Loudspeaker Data.)
  • Author
  • Model page created by Martin Kent. See "Data change" for further contributors.

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