Odd-shaped sub enclosures

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=16536
Printed Date: June 14, 2025 at 1:25 AM

Topic: Odd-shaped sub enclosures

Posted By: soundduck
Subject: Odd-shaped sub enclosures
Date Posted: July 21, 2003 at 6:54 PM

I'm considering putting a subwoofer in my RX7 convertible. I'd like to put it behind the dirver's seat but space is very limited. My initial plan is to having the sub pointing up. Given the space limitations, I'll be building my own enclosure. (I've done some research and have a basic understanding of enclosures, volume, etc...

My questions:

1) The spot where I want to build the enclosure to put the sub is a deep "V" shape., vertical on one side. So, if you titlted a V so that one side is perpendicular and put the sub horizontal at the open top of the V, that's what it will lokk like. Will this configuration work acceptably or will it cause poor sound wave reflection in the enclosure?

2) Will this vary the required enclosure volume as compared to the more standard enclosure shapes?

3) Does it matter if the sub is in the middle of the top of the enclosure or off to one side?

Replies:

Posted By: stockcivic
Date Posted: July 21, 2003 at 10:24 PM

don't take my word for it but I would think that a V shaped box with a sub on the top would have good wave reflection. I am sure if that is the case then you can build the box to work with your available space.

Posted By: chasesaccessori
Date Posted: July 22, 2003 at 8:51 AM

I agree! as long as it works for your application, go for it.

I have build so many enclosures that I cant even begin to tell you. I have played around alot with sound wave reflection, and what I have found is that as long as you don't have any 90 degree corners and parallel surfaces you get the very best bass possible. This encludes supports inside the box as well. Though this is not ideal in any car and very hard to achieve.

To put this to the test I built a bax to run one (1) 12" sub to fit in the bed of a pickup. Not to look pretty at all, just a test. The design name I can't remember but it looked much like a conch. (sea shell) Filed, sanded, bondoed, and glassed the inside of the box so there was absolutely no 90's or parallel surfaces as it spireled around. Took about a 1000 watts to power but sounded... Well it left everyone on the proberty for that car show dumbfounded that that much bass came from one speaker, even though it was so impractible.

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(owner/installer)
Chase's Accessories
Ridgecrest, CA
in business since 92