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Reload Thread: how do i calculate the cubic airspace of an enclosure?

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    B2000's Avatar
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    how do i calculate the cubic airspace of an enclosure?

    How do i do that??







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    Icon31

    ok dood the basic formula is depth x width x height (of interior dimensions not external)... but there are more complicated enclosures and what not hence resulting in multiple formulas depending on box shape size and wot not.,...
    this is a site that is all u would ever need to know about anything related to car audio but there is a section in the site that does the enclosure calculations for u....
    http://www.eatel.net/~amptech/elecdisc/caraudio.htm

    u will find this site to be the answer to just about any question u will ever have




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    MikeofTulsa's Avatar
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    L x W x D / 1728 = X^3


    to find the internal jus subtract the displacment of the sub from the total from above




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    ace7733's Avatar
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    how do you find the displacement of the sub?

    and why do you divide by 1728?!?!?!?!?!?



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    EVOECLIPSE's Avatar
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    on the spec sheet you get with your sub, that is where you can find its displacement.



    03 S-10 xtreme

    HEAD UNIT - Kenwood Excelon KDC-X869

    4X6'S - Kenwood Excelon KFC-X468c

    6.5's - Kenwood Excelon KFC-X168

    SUB AMP - JBL BP1200.1

    SUB - Kicker Solo Baric S10L7D2

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    MikeofTulsa's Avatar
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    1728 is 12x12x12

    basicly the number of inches in 1 cubic foot of space....thats how you convert it to ft^3




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    ace7733's Avatar
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    oh, ok

    so it's L (in inches) times W (in inches) times H (in inches) = x

    x/1728 = cubic feet



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    MikeofTulsa's Avatar
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    correct....then just subtract the cubic ft. of displacment of your sub or the cubic inches before you divide by 1728...good luck




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    Ok, I haven't got my subs yet, so I don't know the exact figure, but I subtracted .07 ft^3 for a 12, I got that number from http://www.eatel.net/~amptech/elecdisc/caraudio.htm.



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