Does the shape of sub enclosure matter?

Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=56548
Printed Date: May 17, 2024 at 10:40 PM

Topic: Does the shape of sub enclosure matter?

Posted By: swede
Subject: Does the shape of sub enclosure matter?
Date Posted: May 27, 2005 at 6:51 PM

Before I go any further with the enclosure I am in the process of installing, I need to make sure if the shape of the enclosure matters, vs. just the internal volume?

It is going into a storage compartment with the spare tire. I intend on keeping the spare (unless someone knows how to mount a sub on a 17" rim in the event of a flat posted_image

), and in order to get the volume correct I had to go wider at the top. I need 1.0 cu ft., mine is at .979.

Thanks in advance.

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Subtlety is EVERYTHING.

Replies:

Posted By: oonikfraleyoo
Date Posted: May 27, 2005 at 7:20 PM

If its sealed, not at all, acctully I can't think of ANY time it would matter. The more curves the less chance of standing waves though.

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Nik
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Posted By: spootydlux4
Date Posted: May 27, 2005 at 8:02 PM

standing waves are bad right!, . Swede if your that close just fill it with some polyfill, but i think that will be ok

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blah blah blah blah

Posted By: auex
Date Posted: May 27, 2005 at 8:20 PM

oonikfraleyoo wrote:

Jeeputer Progress
[| || || || ||---] 75%

Your meter is moving lately.

Yes box shape does matter, but it isn't much to worry about.

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Posted By: swede
Date Posted: May 27, 2005 at 10:55 PM

I'll try to describe the general shape.....the distance from the bottom of the sub to the top of the tire rim (the sub actually fits above the center of the tire/rim) is about 1.5 inches. I actually have 2 "boxes" in progress. One is shaped like an upside down Aztec pyramid. The other, has a circular bottom, then an intermittant ring before the top with framed supports connecting the two as well as another layer of supports to the top. Almost like the frame of a zepplin shaped like a cone (make sense?). That one I was considering fiberglassing so the enclosure would literally be a cone shaped box (wasn't that a Nirvana song.....wait, that was heart shaped box...nevermind - hey - wasn't that a Nirvana album?! posted_image

)

Does either of these sound better than the other - or for that matter - functioning?

From the "standing waves" issue, sounds like the cone shape would be best. (?!) Do they still need to be filled with fiberfill?

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Subtlety is EVERYTHING.