question about speaker power

Discussion in 'General Electronics Chat' started by huitlacoche, Jul 29, 2012.

  1. huitlacoche

    Thread Starter New Member

    Apr 29, 2009
    9
    0
    Hi,

    I'm interested in experimenting with tactile tranducers but I'm not terribly versed in how wattage ratings will affect them. I've been looking at some cheaper 8 ohm transducers that can handle about 3-5W rms. I have an amp that supplies about 25w. Now I'm thinking this will literally destroy the transducer and that I should go with a more expensive one that can handle 25 watts. Is my understanding of this flawed and the cheap ones will be fine?

    Thanks!
    -- Mark
     
  2. K7GUH

    Member

    Jan 28, 2011
    191
    23
    You could build an array of such speakers connected in series and in parallel so as to give you 8 ohms impedance. The array of 8 such speakers could handle 25 watts.
     
  3. #12

    Expert

    Nov 30, 2010
    16,247
    6,739
    You could refrain from turning the amplifer as high as it will go. That will send less power to the speaker.
     
  4. crutschow

    Expert

    Mar 14, 2008
    12,972
    3,219
    Keeping the volume down will keep the transducers from being over loaded. If you are worried about someone turning the volume too high, you can add a normal (not slow-blow) fuse in series with the speaker connection. A 700mA fuse will limit the power to about 3.9W.
     
  5. mlog

    Member

    Feb 11, 2012
    276
    36
    Yes!! I like that answer. Also, fuses can be your best friend.
     
  6. huitlacoche

    Thread Starter New Member

    Apr 29, 2009
    9
    0
    great. thanks for all the responses!
    -- Mark
     
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