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    help me with a box design please

    Hi there,

    Have 2 rockford fosgates punch stage 2's,

    Website says they need .5 to .85 cubic feet sealed per sub ..

    Thats around 1 to 1.9 cubic feet per sub,

    I think i am doing my conversions wrong because when i do it the box is just too dam small,

    What do the approximat dimensions need to be for a 3/4 inch MDF board rectangular box ..

    Also taking into consideration the approximate displacment of the sub ..

    Thanks,







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    Re: help me with a box design please

    I can so you a design thats ported/sealed/bandpass with a full cutsheet for a little money. Just send me a PM. Ive done quite a few.




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    Re: help me with a box design please

    Don't pay for that ****...

    You need to start with the dimensions you have to work with in your vehicle and make a box relative to those parameters.

    Length x Width x Height / 1728 (a cubic foot in inches), will give you your volume for your box. You need to add 1.5 to each dimension for 3/4 inch MDF in order to determine actual box size, or subtract it from each prior to doing your math if you have factored material thickness in your dimensions already.




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    Harleyfx69's Avatar
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    Re: help me with a box design please

    Quote Originally Posted by PhatTonyDeMarco View Post
    Don't pay for that ****...

    You need to start with the dimensions you have to work with in your vehicle and make a box relative to those parameters.

    Length x Width x Height / 1728 (a cubic foot in inches), will give you your volume for your box. You need to add 1.5 to each dimension for 3/4 inch MDF in order to determine actual box size, or subtract it from each prior to doing your math if you have factored material thickness in your dimensions already.
    K thanks man,

    Right now im working with the backseat of a dodge ram ,

    I have a sheet of 3/4 MDF sitting in my dorm room,

    so size of box isnt really an issue,

    just something that will look decent with 2 ten's in it,

    The mounting depth of the sub is somewhere around 6 inches, so i think i need at least around 8 inches deep to cover wires and what not,

    But other than that size is in the air




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    Re: help me with a box design please

    12 by 12 by 12 internal dimensions is 1 cube fyi.



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    Re: help me with a box design please

    Thanks,

    And one other question would the p2's be *better* in a smaller, or the larger dimensions of the box ?


    1 cubic foot, or 1.9




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    Re: help me with a box design please

    okay another question,

    Considering im trying to fit two tens into the box,

    If i build it large enough to cover both ten's ,

    The box length is minimum going to be around 20 inches, and thats just covering subs, not mounting space or anything,

    After i build this to fit,

    To get the box to the necesary volume,

    Would i need to put something in it to take away displacement to get it down to the 1.5 cubic feet ?




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    Re: help me with a box design please

    Let me know your maximum dimensions, shoot me a PM and I'll help you out.



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