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Reload Thread: SPL advice needed for my hatchback

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    SPL advice needed for my hatchback

    Question is, which way should the sub and port be faceing for the best SPL result in this style of hatchback.....the hatch isnt angled hard like CRX's and some other jap hatches, see the links at the bottom for pics of what it looks like.

    i have a single TC4HP, about 3000w, and within the next week or two i'm ging to go measure my cars resonation frequency.

    should it go sub up port towards the front. do areo ports have any signifigant advantages besides saving space? i'm looking for a non wall type application. My hopes are to kick some *** in street C, so SPL heads i'd love ur advice on how to do this.


    exact same looking hatches as mine:
    http://cgi.ebay.com/ebaymotors/VOLKS...QQcmdZViewItem

    http://www.edmunds.com/media/news/co.....f3-4.500.jpg


    i'll get internal pics if you guys need.....



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    Re: SPL advice needed for my hatchback

    either sub up or forward and aero port back



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    Re: SPL advice needed for my hatchback

    cool

    any other opinions guys ???



    Team American Power Systems
    Pioneer Avic N5 Navi + CD-UB100 USB Adapter. RARE Circa 1996 PPI Ax606.2 in BLACK (1 of 400ish made) with 2 rare black graphic spacers.
    CDT DRT-25 1'' Silk Dome Tweeters / CDT ES-04 4'' Midranges / RE Audio XXX 6.5'' 2ohm Neo Mids In Glassed Kick Pods
    American Power Systems 240amp H.O. Alty / (2) Deka 8a31, 1/0 front to back.
    Unknown Prototype 3k @ 1ohm. TRF/PSI 8 layer 4in coil hybrid beast in 3 cubs @ 33Hz / Raammat 40sqft in the trunk.
    Quote Originally Posted by Haunz View Post
    You could put 12V to my balls and clamp my dick to get 3kW+.
    Quote Originally Posted by Slayerx View Post
    Glad this got bumped so I could fap to it again.

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    Re: SPL advice needed for my hatchback

    i have a hatch and so far mine is loudest with sub up and port facing drivers side in the back



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    Re: SPL advice needed for my hatchback

    i like ur setup btw mazdakid........ur hatch is more angeled than mine...but so far between you2 guys and some other people ive asked they all recommend sub up port back.......



    Team American Power Systems
    Pioneer Avic N5 Navi + CD-UB100 USB Adapter. RARE Circa 1996 PPI Ax606.2 in BLACK (1 of 400ish made) with 2 rare black graphic spacers.
    CDT DRT-25 1'' Silk Dome Tweeters / CDT ES-04 4'' Midranges / RE Audio XXX 6.5'' 2ohm Neo Mids In Glassed Kick Pods
    American Power Systems 240amp H.O. Alty / (2) Deka 8a31, 1/0 front to back.
    Unknown Prototype 3k @ 1ohm. TRF/PSI 8 layer 4in coil hybrid beast in 3 cubs @ 33Hz / Raammat 40sqft in the trunk.
    Quote Originally Posted by Haunz View Post
    You could put 12V to my balls and clamp my dick to get 3kW+.
    Quote Originally Posted by Slayerx View Post
    Glad this got bumped so I could fap to it again.

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    Re: SPL advice needed for my hatchback

    at finals in street a a guy did over a 153 with a vw golf... sub up port to pass side i think




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    Re: SPL advice needed for my hatchback

    Quote Originally Posted by lilmaniac2 View Post
    at finals in street a a guy did over a 153 with a vw golf... sub up port to pass side i think
    waww, with what sub and power??




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    Re: SPL advice needed for my hatchback

    just for better use of space with the seat up not folded down. i would place the sub up and port up aswell. that way there wont be anything in the way of the port or sub. so max air movement. for both the sub and port. or you could make a small enclosure for testing purposes and try every wich way since you are going to compete. then you should try diffrent types of enclosure to see what works best. to be the best you have to do tests. but i would go with sup up port up.




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    Re: SPL advice needed for my hatchback

    Quote Originally Posted by PowerNaudio View Post
    just for better use of space with the seat up not folded down. i would place the sub up and port up aswell. that way there wont be anything in the way of the port or sub. so max air movement. for both the sub and port. or you could make a small enclosure for testing purposes and try every wich way since you are going to compete. then you should try diffrent types of enclosure to see what works best. to be the best you have to do tests. but i would go with sup up port up.
    i think sub up and port up would be nice for spl but wont sound good at all...imo




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    Re: SPL advice needed for my hatchback

    Quote Originally Posted by SQBubble View Post
    i think sub up and port up would be nice for spl but wont sound good at all...imo
    id like to know how did you figure it wont sound good.




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    Re: SPL advice needed for my hatchback

    i havent had mine on a meter, but this car and my last hatch didnt get as loud with sub and port up



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    Re: SPL advice needed for my hatchback

    thats why i also sugested trying diffrent styles of enclosure. what works on one car may not work the same in a diffrent car. the reason i sugest the port up on that car is because its a small area for an enclosure, so placing the port back would mean that the enclosure would have to be limited to leaving enogh clearance for the port. i know allot of people dont care about that clearance. but it is nesesary. so by having the port up. you can squeze a bigger box in the limited space. i dont have any prefference on the style of enclosure, im just looking at the area avalible and what would be "best" for the install. i cant say that it will be the "best" posible solution for this particular vehicle. but it just seems like the most sutable for the avalible space.




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    Re: SPL advice needed for my hatchback

    you dont need that much port clearance all the time, i just had mine 2" away and it was fine



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    Re: SPL advice needed for my hatchback

    Quote Originally Posted by mazdakid View Post
    you dont need that much port clearance all the time, i just had mine 2" away and it was fine
    what where the port dimensions?




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    Re: SPL advice needed for my hatchback

    5.5" wide



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