Sub box for my XJ - JeepForum.com
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post #1 of 21 Old 11-05-2013, 05:16 PM Thread Starter
xj9723
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Sub box for my XJ

Hi I was wondering if anyone had a good set of plans for a subwoofer box to fit 2 12's thanks guys

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post #2 of 21 Old 11-09-2013, 06:34 AM
mschi772
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TWO 12's?! I'm an audiophile and I'll never understand that. The best subwoofer box for the XJ that I know of is made by DoubleTapXJ over at CherokeeForum. He makes boxes for 10" and 12" that take-up virtually zero cargo space; with two 12's, you can't avoid rendering a bunch of your cargo space useless. Here's a link: http://www.cherokeeforum.com/f10/xj-...y-10-a-120210/

Build Thread -- http://www.jeepforum.com/forum/f177/whats-chrokeese-build-thread-2525690/
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post #3 of 21 Old 11-11-2013, 11:45 AM
Muddblood
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Funny...I did the same thing in my 1st XJ, like 10 years ago. Only I made mine out of 3/4" MDF. NOW I am toying with the idea of a fiberglass version to gain more air space inside the box...just need to get my attitude and off-road prowess addressed in my current XJ. There really is A TON of room behind that right rear panel!!!! I'm also toying with the idea of subs in the rear tailgate.
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post #4 of 21 Old 11-12-2013, 02:42 PM Thread Starter
xj9723
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Yea im building a box right now my current one isn't very space effecient does anyone know how truck bedliner would work as a covering
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post #5 of 21 Old 11-14-2013, 09:41 AM
Muddblood
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Quote:
Originally Posted by xj9723 View Post
Yea im building a box right now my current one isn't very space effecient does anyone know how truck bedliner would work as a covering
Never thought of that, but I imagine it would work just fine. Guess it all really depends on how you want the finished product to look.

I often wonder about using the space under the rear seat as a sub box. 2-12"s though...not much you can do to free up cargo space. I am curious though....if there is so much room behind the passenger side rear cargo trim panel (and there is)...what about the driver's side? If so, maybe 2 free air 12's, one on each side? It'd be SUPER easy to do...screw a piece of 3/4" mdf (1/2" might be ok too) behind the trim, mount the speakers, replace trim, done. Well, you'd also have to cut a hole in each trim panel, but still pretty easy.
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post #6 of 21 Old 11-14-2013, 12:05 PM
mschi772
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Quote:
Originally Posted by Muddblood
Never thought of that, but I imagine it would work just fine. Guess it all really depends on how you want the finished product to look. I often wonder about using the space under the rear seat as a sub box. 2-12"s though...not much you can do to free up cargo space. I am curious though....if there is so much room behind the passenger side rear cargo trim panel (and there is)...what about the driver's side? If so, maybe 2 free air 12's, one on each side? It'd be SUPER easy to do...screw a piece of 3/4" mdf (1/2" might be ok too) behind the trim, mount the speakers, replace trim, done. Well, you'd also have to cut a hole in each trim panel, but still pretty easy.
Did you look at my link? There's space on the passenger side for a sealed 12, and the guy makes them. The drivers side won't work because of the gas fill tube. Free air would be terrible. The quarter panel would rattle and distort like mad behind the woofer. I get a ton of rattles, resonation, and distortion in my XJ, and i don't even have a sub yet. Proper sound dampening/deadening/proofing is going in first.

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Build Thread -- http://www.jeepforum.com/forum/f177/whats-chrokeese-build-thread-2525690/
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post #7 of 21 Old 11-15-2013, 10:29 AM
Muddblood
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Quote:
Originally Posted by mschi772 View Post
Did you look at my link? There's space on the passenger side for a sealed 12, and the guy makes them. The drivers side won't work because of the gas fill tube. Free air would be terrible. The quarter panel would rattle and distort like mad behind the woofer. I get a ton of rattles, resonation, and distortion in my XJ, and i don't even have a sub yet. Proper sound dampening/deadening/proofing is going in first.

Sent from my phone
I saw the link. Yes, free air's would sound terrible if no sound deadening material was used. I'll dig around to see if I can find a pic of my sub box. It aint't pretty, but it hit pretty hard.

So does the gas filler tube completely seal the driver's side? If not, you'd only lose maybe .5 cuft? Idk...just thoughts that have been rattling in my head for years...finally got an other XJ so maybe I can play with some of these ideas (again, once the off road attitude and prowess is addressed).
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post #8 of 21 Old 11-24-2013, 01:16 PM
pmondo
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Quote:
Originally Posted by mschi772 View Post
TWO 12's?! I'm an audiophile and I'll never understand that. The best subwoofer box for the XJ that I know of is made by DoubleTapXJ over at CherokeeForum. He makes boxes for 10" and 12" that take-up virtually zero cargo space; with two 12's, you can't avoid rendering a bunch of your cargo space useless. Here's a link: http://www.cherokeeforum.com/f10/xj-...y-10-a-120210/
Yeah.....was going to buy a box from him "ready to go with new sub in it"......needless to say, excuse after excuse of why it didnt ship after 3 WEEKS! I asked for a refund and got off my lazy azz and built one.
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post #9 of 21 Old 11-24-2013, 01:36 PM
usawrestler95
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I have one 10" and trust me, it's definitely enough. I have a rockford fosgate 10" sub with a 250w rms amp. I don't know how you could use 2 12's haha.
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post #10 of 21 Old 11-25-2013, 10:12 AM
lilBlackXJ
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I'm using my old shallow 12" in a sealed truck box that was in my regular cab sonoma. I turned it so the sub faces the seat and takes up at best, 4 inches back from the seat. and runs most the width of the seat with enough room for my amp next to it. The box that goes in the pocket of the quarter panel would be a good one also. But honestly, I see no need for more than one sub in an XJ. I wouldn't even use a 12 if it wasn't something I had sitting around collecting dust.

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post #11 of 21 Old 11-25-2013, 12:34 PM
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Found this, but it looks like the rear seat has been removed:
http://www.caraudio.com/forums/enclo...-cherokee.html.

Pic is down a few comments.
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post #12 of 21 Old 11-25-2013, 12:41 PM
pmondo
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Not finished yet but this is what I built. Gonna change a few things and carpet it. Its ported for an sundown audio e8v3, this thing sounds better than 2-10s.......
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post #13 of 21 Old 11-25-2013, 12:44 PM
usawrestler95
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Wow that box looks great! Nice job!
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post #14 of 21 Old 11-25-2013, 01:41 PM
Muddblood
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Not 2 12's but an idea:

http://www.chalacha.com/chadsjeep/jeep.html

Seems EVERYONE is using that little cubbie...not for 2 12's but I'd imagine a box could be built for ONE 12.
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post #15 of 21 Old 11-25-2013, 05:48 PM
pmondo
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Quote:
Originally Posted by Muddblood View Post
Not 2 12's but an idea:

http://www.chalacha.com/chadsjeep/jeep.html

Seems EVERYONE is using that little cubbie...not for 2 12's but I'd imagine a box could be built for ONE 12.
Thats a nice box, have always wanted to mess with fiberglass but never did.

The cubbie is easy to build, and a 12 would be no problem to fit. But I tell ya, that sundown 8" sub will put a hurtin on most 12s.
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