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    Fuknmovin's Avatar
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    Fiberglass box for SPL??

    What are the disadvantages of fiberglass boxes in SPL type builds? The reason I ask is I am just getting sick of the HUGE box in the back of my truck looking ugly and all, and I am thinking of doing a really cool looking fiberglass box in the back and using Aero ports for ports, as I have 4 4"ers ready to go. I may also go to two 15's as with the fiberglass I can get into all the little areas that give up air space and fit a much larger volume box in there using up less space. Let me know what you guys think as I value your opinions...you all do this more than I do...THANKS! I am looking to increase my SPL over the existing box and hope this will work.



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    Re: Fiberglass box for SPL??

    As long as you add enough layers, there's not much of a difference. make it nice and thick and it will go well.



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    Re: Fiberglass box for SPL??

    no diff at all in perfomance if done right its as good as mdf just use as much mdf as you can do all the strit sections if you bottom of the box area is flat i a few spots then dont use all fiberglass fill the flat spots with mdf not casue its better but fiberglass is $$ so the more places you can get away by using wood the better really




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    Re: Fiberglass box for SPL??

    Quote Originally Posted by mmouse57 View Post
    no diff at all in perfomance if done right its as good as mdf just use as much mdf as you can do all the strit sections if you bottom of the box area is flat i a few spots then dont use all fiberglass fill the flat spots with mdf not casue its better but fiberglass is $$ so the more places you can get away by using wood the better really
    Exactly. Use MDF where possible (on flat spots), and then just build up a lot of fiberglass; you'll probably want it to be around 1/4" thick. Once it stops having a boomy sound to it and doesn't really resonate, it's good.



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    Re: Fiberglass box for SPL??

    i used the bounce test. i get a friend who is around 200lbs and have him bounce on the fg part of the enclosure. if it flexes it is not strong enough.





    Quote Originally Posted by eharri3 View Post
    I have 4 12s getting 2K watts rms and my front stage is 4 Walmart JVC coaxials running off 16 watts rms of head unit power. My sub sounds fine but my mids and highs don't sound very clear and start to distort long before my subs do. Anybody know why? Any suggestions?

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    Re: Fiberglass box for SPL??

    Quote Originally Posted by nineball View Post
    i used the bounce test. i get a friend who is around 200lbs and have him bounce on the fg part of the enclosure. if it flexes it is not strong enough.
    That's a good test



    1991 Chevrolet S10 Tahoe | Extended cab | 4.3L (262ci) V6

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    Components: Image Dynamics CXS62 V.2 - Shipping as we speak
    Subwoofers: Still need to be ordered


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