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Why is the sensitivity of center channels greater?

Discussion in 'Archived Threads 2001-2004' started by Len Cheong, Nov 26, 2001.

  1. Len Cheong

    Len Cheong Second Unit

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    Just wondering why center channels have a sensitivity spec greater than the L and R speakers. I don't know if this is true for all ht speaker packages but for many that I've read about this has been the case. Won't this result in a louder center channel vs the l and r speakers forcing you to lower the volome on it? Maybe there's a reason for it...
     
  2. Jack Gilvey

    Jack Gilvey Producer

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    Most of the centers I've seen have two woofers in an MTM arrangement, that can up the sensitivity. Of course, it's not a problem just to turn it down. The center is the best place to have high sensitivity, since it has puts the most demand on the driving amp.
     
  3. Brett DiMichele

    Brett DiMichele Producer

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    Len,

    Sensitivity is a function of the number of speakers and

    the design and the efficiency of the speakers used.

    For exampe lets compare a set of Tower mains and a Center

    that use the exact same Mid/High section. The sensitivity

    of the Towers will generaly be a tad lower than the center

    due to the fact that the Towers also have a sub woofer built

    into the cabinent and the Cener does not have this.

    The more speakers, the more power it takes to drive them

    all at a particular refrence and thus the less sensitive

    it will be. Even cheap speakers in a cheap center section

    "could" be more efficient volume wise than a set of big

    buck towers just because it takes less power to drive the

    center. This doesn't make the center better.. Just a little

    more efficient. Of course there are always more variables

    than this, but that was a general rationalization of sensitivity.
     

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