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Unread 03-29-2007, 09:40 PM   #1
samger2
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SirGCal inseat sub box -- complete *lots of pics*

I finally got done with the inseat sub box.

Here are some pictures of different phases of the install starting with the bare frame all the way to the finished product. Thanks to ALL who helped me on this forum...I must admit though I can't take full credit because I purchased the box already built from a guy on this forum who made two of them. So my install began with choosing my sub and cutting the hole.

First I had to remove the seat frame and cut out the bars


Next mounting the box to the frame




Next we cut out some of the foam...probably could've removed a little more...but I'm happy nonetheless


Put it all back in...filled with polyfil and cut out the holes for the sub and terminals


And finally...the finished product


The only remaining thing I want to do is mount a box over my amp and coat it with duplicolor bedliner so it matches my herculined interior...I'll post pics of that when I do it...but in the meantime here's my amp. I ended up getting it as an opened box item at Best Buy and it cost me under $100...it sounds great!


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Unread 03-30-2007, 06:40 AM   #2
FitchVA
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looks really nice!
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Unread 03-30-2007, 12:46 PM   #3
el_chupo_
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It does look good. I just want to throw out a caution. Polyfil can get hot and melt, and it will melt to the moving parts of the woofer. you may want to pull out a little of that immedialty surrounding the sub iteslf, or push it back a little so its not all over the back of the woofer.

Good luck, and great install.


Matt
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Unread 03-30-2007, 01:24 PM   #4
samger2
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Thank you very much for kudos and for the tip on the polyfil. I was curious as to how much to use and some people recommended cramming it in...so I just did that.

But it's no big deal to pull the speaker out and take some of it out.

Once again, thank you
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Unread 03-30-2007, 03:00 PM   #5
SomeGuysName
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I thought the idea of polyfil was to make the enclosure seem bigger if it was too small for the woofer. If the enclosure is to spec, you shouldnt need it. If it is a little small, polyfil will make it "seem" bigger. You cant stuff it tight though, that will just make a smaller enclosure.

Nice job on the install though
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Unread 03-30-2007, 03:52 PM   #6
samger2
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Well, I was never that good at audio...so this whole thing was a real learning process all the way down to the most simple thing like polyfil!
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Unread 03-30-2007, 04:13 PM   #7
el_chupo_
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What the poly fil does is basically slow down the sound waves in the box, making it act like a bigger box. You are always save putting in an inch or two arround the edges. For it to work to make the box "seem bigger" use about 1 lb per cubic ft of space. But, if the box is to spec, dont worry about it.
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1999 XJ 2WD sport I6, AW4, 8.25, Black
RE 2" BB, 30" A/Ts, intake, exhaust
custom built rear storage box with drawer and sub.

http://www.cardomain.com/ride/2115043/1

1988 XJ Cheif, 4.0, NP231, D30/D35.
4.5'', 33s, 4.56, lockrite, recovery points, skids
K&N cone, flowmaster, cheap speakers, and LOTS of dents.


Plus a pretty black bike
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Unread 03-30-2007, 05:18 PM   #8
samger2
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Awesome...thank you very much for the explanation. I'll go out shortly and take some of the mess of polyfill out of the box.

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Unread 03-30-2007, 09:37 PM   #9
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Hey..good to see it all worked OK for you! How do you like the JL Sub?
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Unread 03-31-2007, 08:37 AM   #10
samger2
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I love the JL sub...sounds great!

By the way, where did you mount your amp?
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Unread 03-31-2007, 08:55 AM   #11
samger2
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Here's my next question to any and all of you...and I know this question has been asked more times than we can count but:

The amp I have is too big to fit under the front seat...or the rear seat without lifting it...so my thoughts are

A) Take this amp out of the TJ completely and use it in the XJ under the rear seat when I do my audio project there

B) Build some sort of "box" over it mounted to the floor and herculined so it matches my interior and looks fairly seemless

C) Put the amp in my factory console...if it'll fit.

If I do "A"...what amps would you guys recommend that would fit under the front seat and wouldn't kill my wallet.

I've been looking at an MTX TC4001...seems to be a decent mono amp that'll push 200w at 4ohms...but I have no experience with MTX amps. I know some brands are pretty good with soundbar speakers...but not necessarily the best with subs.

Thoughts anyone?
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Unread 03-31-2007, 12:57 PM   #12
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why not just mount the amp to the back of the back seat?
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Unread 03-31-2007, 05:09 PM   #13
samger2
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Do you mean inside the seat cover?

If so, would that not allow enough air flow to the amp?

I have thought of doing that, but I thought the amp would get too hot
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Unread 03-31-2007, 05:39 PM   #14
mylt1
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no, just the seat back.
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Unread 03-31-2007, 07:57 PM   #15
samger2
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Well I really wanted to keep it as stealthy as possible and I think it would be easily seen on the back of the seat.
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