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  1. #1
    walkychalky's Avatar
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    Box Question

    Currently I have two 12's but am upgrading to two 15" RE SX's.....they will be powered by an orion 2500d.... here is a quick sketch of the box i am using now: http://img357.imageshack.us/img357/9...closure7zy.jpg
    It's made with 3/4" MDF

    so my question is do u think that this box will be a nice match for my new subs if i cut the holes larger so that they fit 15's? or would u suggest a whole new box?....i would like to keep this one because it fits perfectly in my Grand Cherokee and looks very nice....but i dont want my new subs to sound like **** in it....so any suggestions?....i dont know anthing about building boxes so i would have to pay for someone to build a new one.....so lemme know what your guys opinions are. Also, if anyone could let me know what the box is tuned to n its volume that'd be very helpful....i forgot what it was n dont know how to figure it out. (The calculators only confuse me)

    Thanx







  2. #2
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    Re: Box Question

    Looks good, RE recommends 3.5 per 15 SX for SQL, and you're giving them a little under 7.8( i dunno what ur subs displacement is, closer to 7 after displacement) for both with a tuning at about 31. pre-displacement of subs.




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    Re: Box Question

    thanx for ur help....how do i found out the displacement of my subs and how much will the displacement affect tuning??




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    Re: Box Question

    Quote Originally Posted by kuijo
    Looks good, RE recommends 3.5 per 15 SX for SQL, and you're giving them a little under 7.8( i dunno what ur subs displacement is, closer to 7 after displacement) for both with a tuning at about 31. pre-displacement of subs.
    Wrong.



    Quote Originally Posted by Scoobydoo View Post
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    Quote Originally Posted by audioholic View Post
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    Re: Box Question

    Quote Originally Posted by tRiGgEr
    Wrong.
    then what is it really?




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    Re: Box Question

    Quote Originally Posted by tRiGgEr
    Wrong.
    very informative




    Its either 7.8 @31 or 6.3@34 depending on how u measured it.




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    Re: Box Question

    Box = 6.73 before any displacments. Granted those are external dimmensions.
    Port displacment = 0.56
    Speaker displacment will be 0.36

    So 5.81ft^3 after displacment. That's only 2.91ft^3 each and you will need a bigger box...



    Quote Originally Posted by Scoobydoo View Post
    Before poking fun at others at least learn to spell. I won't go into all the gammar mistakes!
    Irony?

    Quote Originally Posted by audioholic View Post
    Your sig... Im trying to figure out if you think he spelled grammar wrong. Because, he didn't. Irony indeed.

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    tRiGgEr's Avatar
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    Re: Box Question

    Oh and your current box is tuned to 34.5hz...



    Quote Originally Posted by Scoobydoo View Post
    Before poking fun at others at least learn to spell. I won't go into all the gammar mistakes!
    Irony?

    Quote Originally Posted by audioholic View Post
    Your sig... Im trying to figure out if you think he spelled grammar wrong. Because, he didn't. Irony indeed.

  9. #9
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    Re: Box Question

    was it wrong because he used those as if they were internal mesurements??




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    Re: Box Question

    Ya.




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    Re: Box Question

    so if i wanted 3.5 cubes per sub after port and sub displacement.....tuned to about 32 Hz...... what would the LxWxH (external) have to be?....would it fit in a space thats 45x21x19?.....




  12. #12
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    Re: Box Question

    Youd be a little shy with those exact dimensoins after sub displacement.




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    Re: Box Question

    Yes. But you may not get the disired port area for 2 15's.



    Quote Originally Posted by Scoobydoo View Post
    Before poking fun at others at least learn to spell. I won't go into all the gammar mistakes!
    Irony?

    Quote Originally Posted by audioholic View Post
    Your sig... Im trying to figure out if you think he spelled grammar wrong. Because, he didn't. Irony indeed.

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    Re: Box Question

    could u give me the dimensions it would take.....maybe extending the length and width a lil bit....i could maybe gain an inch or two either way....or would this still not be enough?




  15. #15
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    Re: Box Question

    Actually those dimmensions wrok out pretty good.

    Box - 45" x 21" x 19" = 8.59
    Slot Port - 17.5" x 4" x 16" = tunned to 32hz(31.83)

    Each speaker will have 3.73ft^3



    Quote Originally Posted by Scoobydoo View Post
    Before poking fun at others at least learn to spell. I won't go into all the gammar mistakes!
    Irony?

    Quote Originally Posted by audioholic View Post
    Your sig... Im trying to figure out if you think he spelled grammar wrong. Because, he didn't. Irony indeed.

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