Bandpass enclosure volume?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=29374
Printed Date: July 18, 2025 at 9:12 AM

Topic: Bandpass enclosure volume?

Posted By: flashalex
Subject: Bandpass enclosure volume?
Date Posted: March 30, 2004 at 10:19 PM

how can you find the sq feet of a bandpass box. its for 2 12s and they face eachother in like a V shape with a plexi glass window

Replies:

Posted By: superstreet786
Date Posted: March 30, 2004 at 10:54 PM

just measure the height x width x depth and divide by 1072 i believe but only measure the inside

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---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap

Posted By: superstreet786
Date Posted: March 30, 2004 at 10:55 PM

well thats the calculation for volume atleast... i dont know if thats what u wanted?

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---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap

Posted By: alex75
Date Posted: March 31, 2004 at 9:55 AM

The manual that came with my aw1051q's indicates that volume is H x W x D divided by 1728, not 1072. I'm not disagrreing, I'm just throwing it out there. Does your box have black carpet w/ grey carpet on the sides and a mirrored interior? If so , we have the same box except I have 10's. The box looks great, is loud, but i don't think it's the right size(mine anyway) for my subs. The sound quality is just so-so. Based on popular opinion I'm going to start building a nice sealed home for them.

I used to be good looking till' my brother Cassius hit me in the face with a shovel!

Posted By: DYohn
Date Posted: March 31, 2004 at 10:22 AM

Read this: https://www.diysubwoofers.org/bnd/4thorder.htm

Then yu can decide if your bandpass enclosures are correct for your drivers.

Posted By: superstreet786
Date Posted: March 31, 2004 at 12:09 PM

yea alex your right, I was trying to remember back from when i build my 3 boxes but the number came out wrong :) thats why i didnt say that for sure. Thanks for the correction...

-------------
---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap

Posted By: flashalex
Date Posted: March 31, 2004 at 3:21 PM

when you do the measuring do u measure the whole box or do you measure just one side of it and divide by 1728?

Posted By: flashalex
Date Posted: March 31, 2004 at 3:22 PM

no my box is similar it doesnt have a mirror and the carpet is the same color all around inside and out

Posted By: stevdart
Date Posted: March 31, 2004 at 4:04 PM

12X12X12=1728, the total cubic inches in a cubic foot.

measure inside width X length X height in inches. You will get your total box volume. Divide this number by the inches in a cubic foot to convert your number of cu. inches to cu. feet. Now you have your box volume in cubic feet, for example, .88 or 1.27

Posted By: superstreet786
Date Posted: March 31, 2004 at 6:26 PM

nice explanation stevdart

-------------
---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap