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help designing box for DC truck

Discussion in 'Audio & Video' started by 93civEJ1, Feb 15, 2012.

  1. Feb 15, 2012 at 7:02 AM
    #1
    93civEJ1

    93civEJ1 [OP] Well-Known Member

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    Procomp 6" Stage 1, Bilstein 5100's in front, flowmaster 40 series
    Ok...I have purchased to very very cheap 8" subs because the mounting depth falls in spec, they supposedly require very small sealed enclosures, but everything I ready says they also like vented. I bought 2 of them, but am thinking of only running 1 since they amount of space we have in the 2nd gen dual cabs. so can someone help me maybe design a box that is ported? I have read they like around .7-.8 ft cu as far as a vented box...thinking of tuned to around 35hz. I dont mind to take up the whole back wall area behind the seats. It would be very awesome if I could run both, but dont think that would happen. Where do I need to begin? I know the basic measurements of the back of the truck, but dont know much as far as designing a ported box since I am mainly used to sealed.
     
  2. Feb 15, 2012 at 7:07 AM
    #2
    Pope953

    Pope953 That's a fact Jack!

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    Check out this guy, Mr Marv.

    Ask him some questions if you need to. I hear his in a genius when it comes to this kind of stuff. Wish I could help more, but this is who I would refer anyone to.
     
  3. Feb 15, 2012 at 7:11 AM
    #3
    93civEJ1

    93civEJ1 [OP] Well-Known Member

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    yeah...ive seen him mentioned alot. I want to build it myself and all of that and dont want to have to pay someone for just a little gain of knowledge...haha.
     
  4. Feb 15, 2012 at 7:15 AM
    #4
    Pope953

    Pope953 That's a fact Jack!

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    Well good luck with that. I bought the box in my truck and my car. Too much to consider when making one, I learned that the hard way. It's easy to make one that does sound proper and hard to make one that fits the sub and for it to fit in the space you need. It can be done, but you'll want to make it to where it will go with the specs of the sub. And you'll want a good amp to push it. Cause without a good amp it won't mater how nice your box is. If you don't have to power to push it, it won't matter, and won't sound good. Found that out the hard way as well. Had to go through 2 amps, and 2 boxes to learn that.
     
  5. Feb 15, 2012 at 7:40 AM
    #5
    93civEJ1

    93civEJ1 [OP] Well-Known Member

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    thanks...ill be able to do it...im pretty handy at building things and always do everything myself. Just not familiar with installing a port tuned tuned to a certain spec.
     
  6. Feb 15, 2012 at 9:21 AM
    #6
    TurboGT

    TurboGT Stirring the pot since...

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    well you're not going to get much help from anyone until you give us specifics on the subs.... what brand, what model, link to a website, etc... No one can tell you anything definitive without knowing what they're/you're dealing with
     
  7. Feb 15, 2012 at 9:30 AM
    #7
    93civEJ1

    93civEJ1 [OP] Well-Known Member

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    lanzar max 8. They dont have the actual recommended enclosure volume on the site or within the manuel...but I provided what others have had the best luck with in previous posts.
     
  8. Feb 15, 2012 at 9:52 AM
    #8
    TurboGT

    TurboGT Stirring the pot since...

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    I found this with a quick google search:

    http://www.lanzar.com/sku/MAX8/Max-8-600-Watt-Small-Enclosure-4-Ohm-Subwoofer

    but ya, not much help.... and from what I'm seeing, it almost looks like these things are "throwaway" subs... buy it, burn it up, throw it away & buy another one... I'm seeing prices as low as $15 from some places.

    I got nothing else to constructively contribute to this.... GL with them :)
     
  9. Feb 15, 2012 at 9:57 AM
    #9
    NOCENTS

    NOCENTS Well-Known Member

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    Did you call Lanzar???
     
  10. Feb 15, 2012 at 9:58 AM
    #10
    Aw9d

    Aw9d That one guy

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    Throw away those Lanzar's.. Your going to spend more on wood than what those speakers are worth.
     
  11. Feb 15, 2012 at 9:58 AM
    #11
    mattg43

    mattg43 Well-Known Member

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    Dont need the recommended enclosure volume, need the T/S parameters.

    If you just want to do a random guess, there are a ton of port length calculators online. The port length (and tuning) will depend on the area of the port, so that is an important consideration.

    If you want to go a bit deeper, and are ready to do a little learning : http://www.mobilesoundscience.com/f5/winisd-tutorial-43/
     
  12. Feb 15, 2012 at 11:35 AM
    #12
    93civEJ1

    93civEJ1 [OP] Well-Known Member

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    thanks but I dont need financial managers for this. lol

    This is a super low budget build and is going based off good reviews from others who have had experience with these. If you have nothing more constructive on box building or tuning aspects of a box, then input is not needed. ;)
     
  13. Feb 15, 2012 at 11:36 AM
    #13
    93civEJ1

    93civEJ1 [OP] Well-Known Member

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    yes, please tell me what T/S means? not sure with that.

    I am looking at your link at the moment.
     
  14. Feb 15, 2012 at 11:38 AM
    #14
    93civEJ1

    93civEJ1 [OP] Well-Known Member

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  15. Feb 15, 2012 at 12:13 PM
    #15
    mattg43

    mattg43 Well-Known Member

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    Thiele/Small.

    That link is instructions on how to use a (free) box modeling program to determine box size, tuning, and free air response for a driver.
     
  16. Feb 15, 2012 at 1:20 PM
    #16
    93civEJ1

    93civEJ1 [OP] Well-Known Member

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    Thanks...yeah I was playing with that program. I dont seem to have every one of the specs that the program asks for. :(
     
  17. Feb 15, 2012 at 2:32 PM
    #17
    mattg43

    mattg43 Well-Known Member

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    You dont need them all. They help, but are not all needed. Fill in what you have and see what it spits out.
     
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