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Efficiency of older speakers

Discussion in 'Archived Threads 2001-2004' started by Brian Campbell, May 6, 2002.

  1. Brian Campbell

    Brian Campbell Stunt Coordinator

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    I have some old Infinity Studio Monitor 100s (circa 1987)which I'm using as my fronts.

    Is there anywhere online I can find out what their efficiency is? I don't have an SPL meter or any equipment to measure it.

    Or does anyone have an estimate? They are 2-way speakers with a 10" woofer and a fairly large enclosure (approx. 14" x 12" x 40").

    I'd also like to find out their min/max power handling specs.
     
  2. Wayne A. Pflughaupt

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    It’s for moments like this that I keep my old Audio Annual Equipment Directories around!

    From the 1987 edition: Infinity SM 100 (I assume that’s the one?): Frequency response, 35-27kHz (no ± given), Sensitivity, 98dB SPL (1 meter, 1 watt), Minimum power 10 watts, Nominal impedance 8 ohms, Minimum impedance 6 ohms.

    Sorry, Brian, Audio did not list specs for maximum power handling.

    Regards,

    Wayne A. Pflughaupt
     
  3. Brian Campbell

    Brian Campbell Stunt Coordinator

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    Whoa! That's great. Thanks so much for the information, Wayne.

    Man, this forum is awesome!
     
  4. Wayne A. Pflughaupt

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    We aim to please! [​IMG]
    Regards,
    Wayne A. Pflughaupt
     
  5. matthew_rm

    matthew_rm Second Unit

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    98? Are the horns??
     
  6. Brian Campbell

    Brian Campbell Stunt Coordinator

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    I was surprised at the 98 also. No, they are standard 2 way speakers, no horn tweeter.
     

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