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    nick3470's Avatar
    nick3470 is offline Ballin' on a Budget



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    port dimension

    i have a question regarding port dimensions


    what is the formula regarding frequency figuring?







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    Trixter's Avatar
    Trixter is offline Keepin it Simple



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    Re: port dimension

    To find port area and length:

    Fs = Hz
    Av = vent area (sq. in.)
    Lv = vent length (in.)
    Vb = volume of enclosure (cu. in.)
    Attached Thumbnails Attached Thumbnails port dimension-port-formula.jpg  



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    Lv = [(14630000 x R^2) / (Fb^2 x Vb)] - 1.463R
    *Vb = vol. in cu"
    **R = sq.rt. A / Pi (for square/slot port)

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