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speaker enclosure calculations

Posted 12th February 2011 at 08:17 PM by seniordesign

Hello,

I am currently constructing a sealed enclosure for a 12 inch woofer with a resonant frequency of 38 Hz.
My senior design mentor wants me to alter the resonant frequency of the speaker by using a smaller enclosure to shift the frequency at which it resonates to 100 Hz. Its is being used in an interferometer, not for playing music, so I do not need to worry about sound quality.

Does anyone know of the calculations used to alter the Fs?
Thanks!
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  1. Old Comment
    Fc = system resonant frequency
    Vb = box volume

    Fc = (Qtc/Qts) * Fs

    Vb = Vas/((Qtc/Qts)^2)-1
    permalink
    Posted 15th February 2011 at 03:30 PM by hitsware hitsware is offline
 
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