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laser1984
01-24-2007, 11:10 AM
How do u figure the inside cubic feet of a 12x12 box?...

That is 3/4 thick with carpet

ultimate157
01-24-2007, 11:17 AM
Well, you need a 3rd dimension.

those two would be internal dimensions of 11.25 x 11.25 ... whats the third dimension ?

mtlhead
01-24-2007, 11:18 AM
12x12x??

Volume = HxWxL

we need one more dimension

laser1984
01-24-2007, 11:18 AM
Wht would be the 3rd?


Spkr. Displacement?

mtlhead
01-24-2007, 11:19 AM
Height, width, length

mtlhead
01-24-2007, 11:21 AM
have u taken math before??

Volume = Height x Width x Length

Mitch86
01-24-2007, 11:21 AM
Length x width x height minus wood thickness divided by 1728 = how many cubes you have internally.

laser1984
01-24-2007, 11:21 AM
Height 12 inch
Width 12 inch
Length 12 inch

mtlhead
01-24-2007, 11:22 AM
i get .67, anyone else?

Mitch86
01-24-2007, 11:25 AM
That should be correct.

But, I think it's better that the original poster learns to do this himself.

ultimate157
01-24-2007, 11:26 AM
10.5 ^3 = 1157 / 1728 .669 cubic feet.

I always ****ing forget to double the outside walls.

mtlhead
01-24-2007, 11:27 AM
true so heres what i did:

12x12x12 is your outside dimensions

because you have 3/4" wood, you need to acount for that, so subtract 1.5" from each side and thats the internals

now multiply those and divide by 1728, how many cubic inches are in a cubic foot.

that gets u your volume

geowick07
01-24-2007, 11:27 AM
instead of editing, i will just say i am an idiot! lol, same as ultimate. double walls

mtlhead
01-24-2007, 11:27 AM
11.25 ^ 3 = 1423 / 1728 = .8239 before woofer displacement.

dont u have to subtract 1.5 from each dim because each side has 3/4" of wood on it :eyebrow:

Mitch86
01-24-2007, 11:29 AM
dont u have to subtract 1.5 from each dim because each side has 3/4" of wood on it :eyebrow:

That's what I was thinking also.

ultimate157
01-24-2007, 11:29 AM
dont u have to subtract 1.5 from each dim because each side has 3/4" of wood on it :eyebrow:

Edited. I'm very good at math however I ALWAYS make stupid, easy mistakes.

mtlhead
01-24-2007, 11:29 AM
lol he edited his post

good thing im here right ultimate? lol j/k

Mitch86
01-24-2007, 11:31 AM
Haha, we probably just confused the hell of this guy.

mtlhead
01-24-2007, 11:31 AM
lol probably, oh well, he'll get it

off to class

ultimate157
01-24-2007, 11:33 AM
lol probably, oh well, he'll get it

off to class

Same here ... History is so ******* boring.

Mitch86
01-24-2007, 11:33 AM
Anyway, Length x height x width minus wood thickness (which is 1.5 for 2 pieces.) divided by 1728 equals your internal volume.

geowick07
01-24-2007, 11:35 AM
To the OP, this is your final, correct answer. Since we seem to not be feelin the math today, lol!

10.5 x 10.5 x 10.5 = 1157.625 / 1728 = 0.67

laser1984
01-24-2007, 11:52 AM
Next ?

Is that to small of a box for a Cerwin Vega Vmax 10 inch sub

I need a small box cause its in a boat

IamDeMan
01-24-2007, 12:32 PM
Next ?

Is that to small of a box for a Cerwin Vega Vmax 10 inch sub

I need a small box cause its in a boat
Most modern 10" car audio subs will work favorably in a sealed enclosure of that size.

mtlhead
01-24-2007, 12:42 PM
should be fine