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Old June 25th, 2008, 12:20 AM   #1
ddeadserious
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Default Subwoofer Box

I'm getting a subwoofer for my XJ, just a single 8" sub to add a little bass(it's only 900 watt's max, that only a little, right?).

My Jeep is lacking floors, and although I'm working on fixing them, it'll be a while, and aside from that, my door and window seals suck.

So I'm planning on my "system" to see moisture. The amp will probably get mounted to the back of the back seat, so it should stay high and dry. The sub box will be secured to the floor in one way or another, and will surely see some water. The subwoofer is a kicker, and is marine-ready, so I'm not concerned about it getting wet.

I'm concerned about the enclosure..

I've heard MDF isn't too fond of water and moisture. What if I were to herculine it to seal it off, would wetness still have ill effects on it?

I don't have the skills to do fiberglass, so that's out, besides, it uses MDF for a frame most of the time, right?

Isn't plywood a bad choice due to the fact that could vibrate apart or something? Why not use plywood? How well does plywood deal with moisture?

Plexiglass sub boxes are so gay, not to mention they sound like kaka, don't even suggest it.


Suggestions, advice, ideas?
thanks in advance.
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Old June 25th, 2008, 12:28 AM   #2
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i fiberglassed my box, it works great, started with mdf then wraped it in fiberglass. lol and subs make an interesting sound when pushing water instead of air, mine has been completely submersed a few times haha. i also did the inside. the herculiner should work but i wouldnt consider it permenant
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Old June 25th, 2008, 12:35 AM   #3
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i fiberglassed my box, it works great, started with mdf then wraped it in fiberglass. lol and subs make an interesting sound when pushing water instead of air, mine has been completely submersed a few times haha. i also did the inside. the herculiner should work but i wouldnt consider it permenant
So you have a regular shaped box, but wrapped in fiberglass?

Why? To seal it?
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Old June 25th, 2008, 03:35 AM   #4
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yeah it was one from walmart i think, stripped off the carpet and wrapped it up, its 100& waterproof. i even pulled the sub after it was underwater to check and the inside was totally dry. its basically like a fiberglass boat now
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Old June 25th, 2008, 08:42 AM   #5
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The water issue...it sucks. I suffered through the same concerns with a YJ, but luckily I was able to set the sub box up on a wheelwell, where it was safer. Have you considered spacing the sub up off the floor with a waterproof material? Like taking a trip to BedBath&Beyond and making a couple runners to mount to the bottom of the sub box out of that white plastic cutting board material? Unless you're expecting lots of splashing, this should keep the sub box happy enough.
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Old June 25th, 2008, 09:14 PM   #6
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Yeah, I figured I'd make something to lift it off the floor an inch or two. Thanks.

Any other input on material?
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Old June 25th, 2008, 09:17 PM   #7
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look online or whatnot for a how-to on fiberglass, alot of people think its harder than it is, as long as its not structural. i learned how from book and a little practice
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Old June 26th, 2008, 10:33 AM   #8
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This thread reminds me of a Pontiac resident I saw at a wheel shop with an Impala one winter. He was there gerring some blingy dubs and expensive tires. The rear window of the car was missing and in the back seat there were two kids bundled up like the little brother from A Christmas Story.
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Old June 26th, 2008, 05:19 PM   #9
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This thread reminds me of a Pontiac resident I saw at a wheel shop with an Impala one winter. He was there gerring some blingy dubs and expensive tires. The rear window of the car was missing and in the back seat there were two kids bundled up like the little brother from A Christmas Story.
that sounds pretty BAD ASS lmao
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Old July 7th, 2008, 06:33 PM   #10
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Old July 7th, 2008, 08:19 PM   #11
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Hey.... If u go to any marine store they have two part marine fiberglass. I used the lion hair type to fix my jet ski nose. That's the coarses they had but they have fine types. U could buy a can of that it comes with the hardener and mix it up. Pm me if u want some help.
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Old July 11th, 2008, 12:18 PM   #12
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Have you looked into doing it in the cubby hole on the cherokee. heres a write up
http://www.jeepforum.com/forum/showthread.php?t=97186
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Old July 11th, 2008, 12:23 PM   #13
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Have you looked into doing it in the cubby hole on the cherokee. heres a write up
http://www.jeepforum.com/forum/showthread.php?t=97186
Thanks. I've thought about it, but I don't want to deal with all the rattling and sound deadening issues. My Jeep has awful window/door/hatch seals, and nothing is very sealed considering it has little floor left(for now). I'd rather just build a wedge box and remove it when I need to.

I appreciate the suggestion though.
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Old July 12th, 2008, 09:26 AM   #14
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Im still debating between a box or putting it in the cubby.
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