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Thread: Sub enclosure volume Tip!!!

  1. #21
    Maximum Bitrate eCarô's Avatar
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    Quote Originally Posted by Kupop
    One thing I would like to add, you need to take into consideration driver displacement and any other additional supports or items inside of the enclosure. If you have 1ft x 1ft x 1ft perfect cube, the volume is 1cu.ft.

    Once you put in the subwoofer, the driver takes up some of that space, if you have any supports on the sides (not for this small, but a larger box should!) they take up space. So if a subwoofer calls for 1cu.ft of internal volume and that doesn't account for the driver displacement and supports, a 1x1x1 box will not be correct.
    Hmmn. Can't just measure the outside? Well then you might want to try seeing how many packing peanuts will fit in there, or the use tried and true Nestea method.

    Somebody posted these ideas recently. Give me a minute to find the thread.

  2. #22
    Constant Bitrate
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    filling with peanuts and water and coco !!! lol well the peanuts wil not really give you a good measure as they are not a standard form ( some may be bigger) water --- who really wants to get that new mdf enclosure all wet ( unless you fiberglases the inside of it) then you have a matter of gitting the water out ( i guess you can drill a hole in it and put a drain valve)

    why not just build it like you want put the speaker in and see how it sounds if no good stuff it with poly fill

    dont forget to divide by 1728

    chad

  3. #23
    Maximum Bitrate albysure's Avatar
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    you guys just reminded me why i just read and not post often lol


    kupop--most maunfacturers already allow for driver displacement when they give the specs for your enclosure

  4. #24
    Newbie
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    albysure, but not all do.

    If you are using MDF chances are the box is not so difficult that you could just some simple math. When you are using fiberglass off the floor panel and sides of the walls/wheel wells, it is not longer straight angles and to get a good volume measurement it is sometimes easiler to fill it up with something, then measure whatever you fill it up with.

    I never used the water method, but have talked to people who have, I wouldn't suggest it on MDF as quickly as fiberglass, also not on large boxes. To remove the water, you just dump it out the hole(s) for the subwoofer. The rest will evap.

  5. #25
    Variable Bitrate Freeman's Avatar
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    seriously folks....
    It aint no family car.

    SEE MK2 At : -
    http://www.mp3car.com/vbulletin/showthread.php?t=22810

  6. #26
    Variable Bitrate Banderon's Avatar
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    Quote Originally Posted by Freeman
    seriously folks....
    Do you think car audio is a JOKE?! Of course seriously..

    Ya know, maybe if you're the "joking" kind, you shouldn't be posting in this thread, fella. This thread is for those of us that want to accurately measure the volumes of our boxes... and if you're just gonna be here to joke around, we don't need your input.







  7. #27
    Variable Bitrate Freeman's Avatar
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    geez ease up, some people take their car audio WAY to serious.

    :P
    It aint no family car.

    SEE MK2 At : -
    http://www.mp3car.com/vbulletin/showthread.php?t=22810

  8. #28
    Variable Bitrate Banderon's Avatar
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    .....dude... you don't get sarcasm.

  9. #29
    Variable Bitrate Freeman's Avatar
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    or u dont ?

    hahah

    we could go on all day
    It aint no family car.

    SEE MK2 At : -
    http://www.mp3car.com/vbulletin/showthread.php?t=22810

  10. #30
    Variable Bitrate Banderon's Avatar
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    No we can't. I have a short attention span.

    Oh look! A butterfly!

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