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    New Truck box Design...

    Mk I've been bored today so I was playing around with some idea's for fitting a 12 behind the seat of my truck. The box would be a downfiring box. I have a quick scketch up I made in paint.




    Thats a very rough idea of what it will look like. The cut out on the back is made to fit around a "hump" in the truck its self, if you have an F-150 (or other truck idk?) you'll know what I'm talking about. I plan on porting it at 32Hz, (at least for now, might change, i'm still in the planning stages) For port area I have roughly 70.5^2in. and a port length of 31.75". My question is if I was to put the port like this...



    Would that cause issues with port noise or other issues?? I can't really think of another way of porting other then going with areo's (which I'd rather stay away from) I'm open to other ppl's idea's, critisims and what not. I probably won't be doing this right away but I might. If anything the box will be getting smaller to make room for an amp rack and what not. If any of this doesn't make since let me know and I'll try and clear things up.

    Also the dimentions given in paint are MAX! I can not make any of them (besides height, that would be the only exception) any larger...




    Your input is appreceated...




    Jon







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    Re: New Truck box Design...

    why dont you just make a square port and fiberglass the hump in the floor to get more volume.




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    Re: New Truck box Design...

    First off the hump is not in the floor its on the back....




    I want to stay away from fiberglassing just b/c I don't want to deal with all the trouble of it. I guess I never really thought of just making a square port. Hmm how about somthin like this....



    Not really sure why I didn't think of that, owell, thanks for the idea... I will mostlikly go with a port of that design...




    Jon




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    Re: New Truck box Design...

    you dont have a hump in the floor at all? and why dont you see about whats behind that hump on the rear wall? if it is the body, you're screwed, but if it is something that can be relocated, do it and pull the panel or make your own.




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    Re: New Truck box Design...

    ford. engineer's with a ged.






    2003 chevy s-10 ext. cab
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    precision power 356cs components
    front amp: infinity 475a
    sub: diamond audio d6 10d4
    enclosure: 1.1 cubes ported tuned @ 31hz
    sub amp: JL G1700

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    Re: New Truck box Design...

    Ok, I have another question now. How do you calculate a port when the opening is angled, like if I was to fire the sub out the front of a wedge style box. I'm guessing that what you do is somthing like this...




    Doing like I said above makes since to me b/c you would treat the end of the port as a triangle, saying you port needs to be 5" long, you would make the 5" mark come out in the middle like I have marked. This would make the bottom of the port stick out past the 5" mark and the top behind the 5" mark.

    Im I understanding this right, or is there another way of calculating it????


    Thanks...........

    Jon




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    Re: New Truck box Design...

    curious, where do you plan on locating the sub?




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    Re: New Truck box Design...




    Placing the sub like this eliminates the need for shallow mount subs, I can fit a 12MT easly with a designe like this.




    Jon




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    Re: New Truck box Design...

    Quote Originally Posted by kickerlivinloud View Post
    Ok, I have another question now. How do you calculate a port when the opening is angled, like if I was to fire the sub out the front of a wedge style box. I'm guessing that what you do is somthing like this...




    Doing like I said above makes since to me b/c you would treat the end of the port as a triangle, saying you port needs to be 5" long, you would make the 5" mark come out in the middle like I have marked. This would make the bottom of the port stick out past the 5" mark and the top behind the 5" mark.

    Im I understanding this right, or is there another way of calculating it????


    Thanks...........

    Jon
    Anyone answer this questions??????






    Jon




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    Re: New Truck box Design...

    Could use some help guys, I'm at the point were I'm ready to build, just need this question answered before I can start.



    Jon




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    Re: New Truck box Design...

    Quote Originally Posted by kickerlivinloud View Post
    Ok, I have another question now. How do you calculate a port when the opening is angled, like if I was to fire the sub out the front of a wedge style box. I'm guessing that what you do is somthing like this...




    Doing like I said above makes since to me b/c you would treat the end of the port as a triangle, saying you port needs to be 5" long, you would make the 5" mark come out in the middle like I have marked. This would make the bottom of the port stick out past the 5" mark and the top behind the 5" mark.

    Im I understanding this right, or is there another way of calculating it????


    Thanks...........

    Jon
    I know this thread is old but rather than making a new thread i did a search

    Can some one answer this question in the quote?

    For example if the port needs to be 5 inches long and the face of the box is at a tilt so that the bottom sticks out 3 inches farther than the top. how long do i make the port.

    to see what im talking about use the RE box calculator and do a wedge design. to port exits on the slanted face also the internal port opening is straight up and down is this supposed to be like that of should the internal opening be at the same angle as the exit?



    refs: ebaker, its_bacon12, jando86, thedukey42 , WrenchGuy, jaredspl, teenapp, MisterGrubbs, BushJ311, fozzy2134
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    Polk mm6 front components powered by a Soundmagus CP-91 @ 4ohm bridged. JBL/Infinity Hybrid rear components. hu power
    200 amp alt and 2 stinger spv 70's (more pending voltage drop)
    Current output: 144.9 db using new 09 alpha v3's - on music with 1 3k - song: haters everywhere-two five, Chrysler 300M.

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    Re: New Truck box Design...

    ttt



    refs: ebaker, its_bacon12, jando86, thedukey42 , WrenchGuy, jaredspl, teenapp, MisterGrubbs, BushJ311, fozzy2134
    System: Poineer 590ib headunit (soon upgrading to 790bt)
    2 12" RD Alpha V.3's (soon upgrading to konaki 9512 hybrids) powered by 2 Atomic 3000.1d's
    Polk mm6 front components powered by a Soundmagus CP-91 @ 4ohm bridged. JBL/Infinity Hybrid rear components. hu power
    200 amp alt and 2 stinger spv 70's (more pending voltage drop)
    Current output: 144.9 db using new 09 alpha v3's - on music with 1 3k - song: haters everywhere-two five, Chrysler 300M.

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    mendon mafia's Avatar
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    Re: New Truck box Design...

    really? none of u know?



    refs: ebaker, its_bacon12, jando86, thedukey42 , WrenchGuy, jaredspl, teenapp, MisterGrubbs, BushJ311, fozzy2134
    System: Poineer 590ib headunit (soon upgrading to 790bt)
    2 12" RD Alpha V.3's (soon upgrading to konaki 9512 hybrids) powered by 2 Atomic 3000.1d's
    Polk mm6 front components powered by a Soundmagus CP-91 @ 4ohm bridged. JBL/Infinity Hybrid rear components. hu power
    200 amp alt and 2 stinger spv 70's (more pending voltage drop)
    Current output: 144.9 db using new 09 alpha v3's - on music with 1 3k - song: haters everywhere-two five, Chrysler 300M.

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    Re: New Truck box Design...

    Quote Originally Posted by kickerlivinloud View Post
    Ok, I have another question now. How do you calculate a port when the opening is angled, like if I was to fire the sub out the front of a wedge style box. I'm guessing that what you do is somthing like this...




    Doing like I said above makes since to me b/c you would treat the end of the port as a triangle, saying you port needs to be 5" long, you would make the 5" mark come out in the middle like I have marked. This would make the bottom of the port stick out past the 5" mark and the top behind the 5" mark.

    Im I understanding this right, or is there another way of calculating it????


    Thanks...........

    Jon
    ???



    refs: ebaker, its_bacon12, jando86, thedukey42 , WrenchGuy, jaredspl, teenapp, MisterGrubbs, BushJ311, fozzy2134
    System: Poineer 590ib headunit (soon upgrading to 790bt)
    2 12" RD Alpha V.3's (soon upgrading to konaki 9512 hybrids) powered by 2 Atomic 3000.1d's
    Polk mm6 front components powered by a Soundmagus CP-91 @ 4ohm bridged. JBL/Infinity Hybrid rear components. hu power
    200 amp alt and 2 stinger spv 70's (more pending voltage drop)
    Current output: 144.9 db using new 09 alpha v3's - on music with 1 3k - song: haters everywhere-two five, Chrysler 300M.

  15. #15
    mendon mafia's Avatar
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    Re: New Truck box Design...

    someone must know the answer to this question?



    refs: ebaker, its_bacon12, jando86, thedukey42 , WrenchGuy, jaredspl, teenapp, MisterGrubbs, BushJ311, fozzy2134
    System: Poineer 590ib headunit (soon upgrading to 790bt)
    2 12" RD Alpha V.3's (soon upgrading to konaki 9512 hybrids) powered by 2 Atomic 3000.1d's
    Polk mm6 front components powered by a Soundmagus CP-91 @ 4ohm bridged. JBL/Infinity Hybrid rear components. hu power
    200 amp alt and 2 stinger spv 70's (more pending voltage drop)
    Current output: 144.9 db using new 09 alpha v3's - on music with 1 3k - song: haters everywhere-two five, Chrysler 300M.

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