Sub Box, Cu. Ft. dilema!!
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Sub Box, Cu. Ft. dilema!!
hey i'm building a custom box... for 2 10' JL Audio subwoofers, i'm probably gettin W3's.... but the way i got this box designed i will only have like 1.16 cubic feet but i wanna put a divider in leavin me with like .508 feet per sub.... sub recommendation is .975 or something... will i be able to do it still or am i askin for trouble by cheatin the space... ??? not sure what to do ? ?
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Did JL give a range of airspace? If the bottom end is .9 and you do .5, it wont sound good at all, esp if its ported.
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Re: Sub Box, Cu. Ft. dilema!!
Originally posted by nathan2003
hey i'm building a custom box... for 2 10' JL Audio subwoofers, i'm probably gettin W3's.... but the way i got this box designed i will only have like 1.16 cubic feet but i wanna put a divider in leavin me with like .508 feet per sub.... sub recommendation is .975 or something... will i be able to do it still or am i askin for trouble by cheatin the space... ??? not sure what to do ? ?
hey i'm building a custom box... for 2 10' JL Audio subwoofers, i'm probably gettin W3's.... but the way i got this box designed i will only have like 1.16 cubic feet but i wanna put a divider in leavin me with like .508 feet per sub.... sub recommendation is .975 or something... will i be able to do it still or am i askin for trouble by cheatin the space... ??? not sure what to do ? ?
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some ppl believe that filling the box with something like fiberglass insolation will trick the sub into thinking its larger box.
also some ppl mount them in upsidedown to get alittle more internal volume.
also some ppl mount them in upsidedown to get alittle more internal volume.
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actually, when you fill the box with roughly 50% of polyfill(safer than fiberglass to handle) it doesn't trick the woofer into thinking its a bigger box, it makes the airflow behave like its a bigger box. By adding 50% of fill to the box, it actually slows the air down, making the woofer behave in a manner similar to a larger box, but anytime you have a woofer in a box, you want some kind of fill as it buffers any muddiness and cleans up the bass, makes the woofer more responsive, and you have less resonant waves bouncing around inside the box, so the woofers surround takes alot less of a beating while pounding away.
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Originally posted by cronsformula350
...... it doesn't trick the woofer into thinking its a bigger box .....
.....you have less resonant waves bouncing around inside the box, so the woofer....... takes alot less of a beating while pounding away.
...... it doesn't trick the woofer into thinking its a bigger box .....
.....you have less resonant waves bouncing around inside the box, so the woofer....... takes alot less of a beating while pounding away.
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yes thats what i ment. But ive tryed both ways in my box with and w/o and i liked w/o better. No hurt in trying it.
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yeah sometimes the fill doesn't make much of a difference.
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Originally posted by Jim85IROC
Good quality fill can fool the sub into thinking it's in a 10-15% larger box...
Good quality fill can fool the sub into thinking it's in a 10-15% larger box...
Last edited by jcurrieirocz; 01-12-2004 at 02:48 PM.
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I like polyfill, its for sale at walmart, and is pretty cheap, its as good as pretty much everything else available. Its safer to handle than fiberglass, and is like 2.50 for a 20 0z. bag. A friend of myne told me also that some car stereo mag said it was great for boxes too, even though I used it before I knew about it being so great.
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the other option is to build an Isobarik subwoofer box, but that involves another 2 subs & isn't quite as cost effective
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Originally posted by jcurrieirocz
What kind do you recomend or what kinds are good?? Im still trying to think what i used.
What kind do you recomend or what kinds are good?? Im still trying to think what i used.
I've never used it personally, however, so I'm going by what I've heard on some of the DIY audio forums.
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Car: 89 Formula L98 power
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Yeah I saw that stuff from parts express, but I was too lazy to spend the money on it, I'm sure it works as well if not better.
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