Box building, funky question

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=53702
Printed Date: May 21, 2024 at 12:18 AM

Topic: Box building, funky question

Posted By: oatmeal
Subject: Box building, funky question
Date Posted: April 11, 2005 at 11:17 AM

I want to save trunk space and put my sub behind the tail-light in the corner of my trunk. I can create a box to fit in there, but it will have a funky shape due to the area of the trunk. Since I will be using wood, there will be squared corners internally, and I wanted to know if that was a problem? I know scosche and maybe JL are working on custom boxes for my car (2005 mustang), but I haven't seen their actual designs. I know I can build the box of wood and carpet for a lot less than $140.

So, will the funky shape work alright with my 10" Alphasonik 410 sub? I can do the math to get the internal volume correct, but I don't know about the other issues inherint to box design (ie, funky shape issues). Any help is appreciated.

Replies:

Posted By: DYohn
Date Posted: April 11, 2005 at 11:22 AM

For a subwoofer, internal volume is all that really matters. Just be sure to brace the enclosure sufficiently so it won't flex.

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Posted By: oatmeal
Date Posted: April 11, 2005 at 11:25 AM

Here is the best picture I could find of the corner of the trunk. My box should be smaller since it will be sealed, and more tucked into the corner right behind the box pictured. So there will basically be an indent into that crevase to increase interior volume. Will this be OK for a sealed unit?

https://forums.bradbarnett.net/index.php?act=Attach&type=post&id=14963

Posted By: Alpine Guy
Date Posted: April 11, 2005 at 12:14 PM

Why don't you fiberglass the back and use mdf where there is flat sections??

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

Posted By: joebobcletusjr
Date Posted: April 11, 2005 at 3:14 PM

Alpine Guy wrote:

Why don't you fiberglass the back and use mdf where there is flat sections??

He has a good point, fiberglass will give you a much cleaner box with less wasted space, and I don't know if there really is that much of a sound/resonance differance but I like the sound of FG, and it's lighter than MDF.

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eh? what did you just say?

Posted By: oatmeal
Date Posted: April 11, 2005 at 5:36 PM

I've never fiberglassed before, but the area is pretty square so I shouldn't have a problem with an MDF construction. I was just worried about weird resonance issues by having an extra square cutout in the chamber. Thanks for the answers guys. I'm going to get building on my first box. I already bought some parts from partsexpress.com to help out.