Speaker sensitivity

Discussion in 'Beginners, General Questions' started by EddieMata, Mar 19, 2004.

  1. EddieMata

    EddieMata Agent

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    If I have two sets of speakers (differnt brand),each say they have the same power output but different sensitiviy. Which would be the better choice, the one with the higher sensitivity rating? Example: 100watts/8 Ohms/ 90db or 100watts/ 8Ohms/ 87db

    Thanks for the imput!

    Eddie
     
  2. Frank Zimkas

    Frank Zimkas Supporting Actor

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    They don't have the same "output power." The 100 watt spec is the input rating. A speaker that is pated at 90 db efficiency will generate 90 db measured at 1 meter with 1 watt of power applied.

    The higher efficiency speaker will generate a greater volume with the same amount of amplification, but it it's a moot point if the sound quality is lousy.
     
  3. EddieMata

    EddieMata Agent

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    I have seen some HT speaker packages in which the mains and center have the same/about the same efficiency. Yet the rear surrounds will vary by up to 6db less. Would it be best to have speakers of the same efficiency rating all around?

    Thanks again for all the insight!

    Eddie
     
  4. ChrisWiggles

    ChrisWiggles Producer

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    sensitivity has little to do with sound quality. Plus, you will have to calibrate the speakers to the same SPL for the listening position anyway. Matching speakers should have similar sensitivity, but this isn't really too much to worry about unless you have very un-sensitive or low-ohm speakers as you may need to have a higher-quality amp capable of driving them well.
     

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