speaker rating

Discussion in 'General Electronics Chat' started by electronic_noob, Sep 26, 2010.

  1. electronic_noob

    Thread Starter Member

    Jan 15, 2010
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    in speaker what is the "power capacity" of the voice coil? is it the power input for the speaker(if that so then i'll only look on the speaker's datasheet)
    if not, what is it, and how can it be determined.

    thanks in advance for the help
     
  2. marshallf3

    Well-Known Member

    Jul 26, 2010
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    Generally it's what the manufacturer wants to claim it to be. There's a lot of hype and very little truth involved in a lot of the specs put out by speaker manufacturers.

    If you've got a name brand speaker that claims it can handle 100W RMS that means everything internal to the speaker should be able to handle a continuous pure sine wave input of 100W RMS over an indefinite amount of time and that is sssumed to be over the usual audio specification range of 20 Hz - 20 KHz.

    If it isn't a name brand that 100W RMS may only be at a certain frequency or in many cases may be only for a fraction of a second.

    Then you've got the even cheaper ones that claim they can handle a 900W input that might boil down to a sad fact that the speaker can only take 10 W RMS when tested under actual FTC conventions.
     
    Last edited: Sep 26, 2010
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  3. electronic_noob

    Thread Starter Member

    Jan 15, 2010
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    OK, so you mean power capacity of the voice coil is the same as the power capacity of the speaker?
     
  4. bertus

    Administrator

    Apr 5, 2008
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  5. electronic_noob

    Thread Starter Member

    Jan 15, 2010
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    I've seen the site sir, it's a good site but I want to know what is power capacity of the voice coil...I mean what is it really is it the power capacity of the speaker?
     
  6. bertus

    Administrator

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  7. electronic_noob

    Thread Starter Member

    Jan 15, 2010
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    I can't seem to find any match with power capacity of the voice coil , therefore I'll just assume that "it is" the power capacity of the speaker, thanks for the help, it is greatly appreciated
     
  8. marshallf3

    Well-Known Member

    Jul 26, 2010
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    Of the woofer yes, unless the crossover ends up feeding more to the midrange &/or tweeter.

    As a general rule it's based on the power handling capacity of the woofer's voice coil.

    The problem still exists that some speaker manufacturers tend to make claims far above and beyond reality.
     
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