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Thread: Subwoofer box

  1. #1

    Subwoofer box

    I finally got some time to finish off the under the rear seat subwoofer box. Sorry in advance, but for several stages all I have are crappy cell phone pictures. Just poor planning on my part.

    So having determined that I wanted 2 10 inch subwoofers under the rear seat, I picked up 2 Infinity Kappa 100.9w subwoofers. These are a very nice, accurate subwoofer optimized for small sealed or ported boxes. I needed .75 cubic feet of airspace.

    Here is the under seat area masked off for fiberglassing:


    Ok, for those who haven't done this type of stuff, the area gets 3 layers of painters tape. Then carnuba wax goes on top, three coats get put down and buffed. Then a good spray with Pam cooking spray...

    First mix your resin, then brush down a liberal coat of resin. Next lay out you fiberglass and start wetting it out. I built up 4 layers. 2 of fiberglass mat (3 oz), one coremat for thickness, and one 4 oz mat.

    Then start on the framework:

  2. #2
    I layer out the supports to maximize air space. If I build more, I will do this part differently. If you notice the front and rear supports are not perpendicular to each other. This made it a pain to get all the angles right so they would meet the top baffle flat.

    You can't really see it, but since I am using the stock seat bolts to secure the box, I embedded washers in between the layers of the fiberglass to give a good strong, air tight seal.

    Hee is the interior with the Raptor liner bed liner first coat.


    Here is the out side of the bottom..


    I am coating the inside and out side with Raptor liner to make sure its water proof and to help deaden resonance.

    Mocking up the baffle...here is where all those angles became an issue. I ended up laminating up a few of the areas for a tight, solid fit.




  3. #3
    Raptor lining the exterior...







  4. #4

  5. #5
    Who is your daddy? dr.dirty's Avatar
    Date Committed
    Nov 2011
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    SoCal
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    4,553
    That came out very Nice......

  6. #6
    Powered By power bottoms jkristie44's Avatar
    Date Committed
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    When you gonna make me some for under the front seat?

  7. #7
    Haldol Shuffle kaptkrappy's Avatar
    Date Committed
    Jul 2013
    Location
    Punta Gorda, FL
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    780
    Beautiful example of "when the tools and the talent come together".

    I bet there will be a lot of JKU owners asking (begging) you to make them one of these.

    .
    Quote Originally Posted by jkristie44 View Post
    my wife shit in my face, bit my dick, and my neighbor came out of the closet..


    2011 JK SPORT__________________________________________________ _________Kapt Krappy

  8. #8
    Nice work.

    Sent by 6ix Offroad

  9. #9
    damn nice work
    Hands up, Don't shoot!

  10. #10
    Haldol Shuffle MR LIKA's Avatar
    Date Committed
    Dec 2011
    Location
    Mission Viejo, Ca
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    740
    I would love to shit in those for ya. I'll fill one up and move to the next.
    Stock Sahara

  11. #11
    Quote Originally Posted by MR LIKA View Post
    I would love to shit in those for ya. I'll fill one up and move to the next.
    Yeah, screw a toilet paper holder in the front and put a magazine rack i between the holes and it serves double duty....pun intended.

  12. #12
    Quote Originally Posted by jkristie44 View Post
    When you gonna make me some for under the front seat?
    Hmmmm, wonder what these could be....




  13. #13
    Powered By power bottoms jkristie44's Avatar
    Date Committed
    Nov 2011
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    Nice! Sold!
    Attached Images Attached Images

  14. #14
    james loves the thump under his rump

  15. #15
    Powered By power bottoms jkristie44's Avatar
    Date Committed
    Nov 2011
    Location
    Pensacola naval base checking out the mens in uniform
    Posts
    4,546
    I love Dicks!

  16. #16

  17. #17
    Haldol Shuffle kaptkrappy's Avatar
    Date Committed
    Jul 2013
    Location
    Punta Gorda, FL
    Posts
    780
    Quote Originally Posted by davesrb View Post
    Funny thing, my wife has called dibs on the back seat permanently. She sat back there while I cranked some Nightwish "High Hopes"



    Just to test it out, and she kept saying "Play it again!" WTF???
    ^^^^^^^^^^^
    Reminds me of this



    .

  18. #18
    I'm late to the party, but looks great. What was the actual internal volume on this (did you get .75)? I want to keep all 7 seat supports so would lose quite a bit of volume so might not work for me. Actually it looks like the seat supports would go right through your Kappas so probably a no go at all.

 

 

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