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Reload Thread: Fiberglass vs. Sealed MDF

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    bdawson72's Avatar
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    Fiberglass vs. Sealed MDF

    I was going to put in a sealed box with polyfill for my 2 infinity kappa perfect 12.1d's but i have since found someone to fiberglass it for almost the same price.......Are there any benefits to fiberglassing besides asthetics.







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    Re: Fiberglass vs. Sealed MDF

    get some extra volume in odd shaped places, but thats kinda obvious



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    Re: Fiberglass vs. Sealed MDF

    Which one would get the most SPL and which one has the best SQ




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    Re: Fiberglass vs. Sealed MDF

    being that all things are equal as far as airspace, and that both boxes are built strong and sealed well, there would be no difference.




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    Re: Fiberglass vs. Sealed MDF

    hey man...i had the same exact subs and when i had my sealed box i put stuffing in there...where in va do you live? to answer the question.. theyd be about the same




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    Re: Fiberglass vs. Sealed MDF

    Quote Originally Posted by Chevyaudio
    being that all things are equal as far as airspace, and that both boxes are built strong and sealed well, there would be no difference.
    x2.
    if i had a dollar for everytime someone said, "i heard fiberglass boxes will not sound as good as mdf" i would be a very rich man.




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    Re: Fiberglass vs. Sealed MDF

    You have to be carefull when you add Poly-fill to a box, Too much and it has the opposite effect, too little and it does nothing.




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    Re: Fiberglass vs. Sealed MDF

    Danville................I was thinkin that MDF sounded better but if i do decide to get fiberglass i guess im gonna hafta stuff it with polyfill



    149@32 hz(headrest)......Dammit i needs to be louder



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    Re: Fiberglass vs. Sealed MDF

    Ok I've read these posts ! I listen to rap music and R&B Whats sounds better sealed or ported and will making a completely sealed box damage my subs two 12"JL audio? I've heard sealed sounds cleaner than ported is this true?




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    Re: Fiberglass vs. Sealed MDF

    Quote Originally Posted by EddieB
    Ok I've read these posts ! I listen to rap music and R&B Whats sounds better sealed or ported and will making a completely sealed box damage my subs two 12"JL audio? I've heard sealed sounds cleaner than ported is this true?


    Start your own thread.




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    Re: Fiberglass vs. Sealed MDF

    Quote Originally Posted by bdawson72
    Danville................I was thinkin that MDF sounded better but if i do decide to get fiberglass i guess im gonna hafta stuff it with polyfill
    Why would you have to stuff the fiberglass box with polyfill ??




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    Re: Fiberglass vs. Sealed MDF

    because i dont think that there is enough volume.......and since polyfill somewhat tricks the sub into thinking its is in a bigger box.



    149@32 hz(headrest)......Dammit i needs to be louder



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    Re: Fiberglass vs. Sealed MDF

    Lol.

    The fiberglassed enclosure is most likely to be larger in airspace than the MDF counterpart. :wink:




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    Re: Fiberglass vs. Sealed MDF

    i know that but since the vehicle that im in has such little cab room i still dont think that it may be enough room.



    149@32 hz(headrest)......Dammit i needs to be louder



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