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    BASS OUTLAW's Avatar
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    Icon32 how BIGG THE PORT SHOULD BE ??

    hi guys ,
    i bought 1 SUB TS-W121SPL,
    i lookin 4 SPL ,
    in the manual it says 1.75 cuft ( for a ported enclosure)
    and the PORT 3"X 6" .
    is this dimenstions perfect or what ?? . i need u r help guys ,, thanx








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    Re: how BIGG THE PORT SHOULD BE ??

    well thats the manufactuer's best test result most likely so try it out and then try out different sizes to see which you like better.....just email the company and ask about an enclosure design for SPL only




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    Re: how BIGG THE PORT SHOULD BE ??

    Use as much port as your subs cone area....12" = 80sq"




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    Re: how BIGG THE PORT SHOULD BE ??

    yeah man i heard that more large PORT means more loud bass?? but am actually a lil bit confused there





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    Re: how BIGG THE PORT SHOULD BE ??

    i doubt that ^ but never tried it so idnk....but just sounds strange




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    Re: how BIGG THE PORT SHOULD BE ??

    i believe for SPL purposes, the 40-48hz range is loudest for ports..
    but that large port also comes with a large box..say 5+cu



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    Re: how BIGG THE PORT SHOULD BE ??

    Quote Originally Posted by djjdnap
    i believe for SPL purposes, the 40-48hz range is loudest for ports..
    but that large port also comes with a large box..say 5+cu
    Well the cone on a woofer will move the most on a 45hz tone...But as far as whats loudest tune close to the resonant freq. (of your install, not the car!!!)(Use the search option on that) and then burp about an 1/8 octave from there.

    Like I said, if your going for SPL the port being as big as the amount of cone area is a good place to start. Every car is different even the same make and model can be louder than the other. Build according to what the specific vehicle likes.




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    Re: how BIGG THE PORT SHOULD BE ??

    i'm confused on what u just said, about the install vs. car frequency..
    i know all cars have a diff freq, but what did u just say



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    Icon32 Re: how BIGG THE PORT SHOULD BE ??

    Quote Originally Posted by djjdnap
    i'm confused on what u just said, about the install vs. car frequency..
    i know all cars have a diff freq, but what did u just say


    i still didnt get this guy too, and how can i know , that my car is this type , n so i have top bulid my enclosure this way ?? :s





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    Re: how BIGG THE PORT SHOULD BE ??

    nono, most people do multiple test with varoius enclosures to figure out what is the loudest one possible, but it usually goes as anything above 5+ cu is going to be an spl enclosure, unless you have like 18's..



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    Icon32 Re: how BIGG THE PORT SHOULD BE ??

    btw guys , in my sub manual , it says that u should fill the inner surface of the enclosure by sound absobing material (WTF) where can i get that ( n is it important) ??
    pluse you know what , the manual says , mm 4"x6.5" ok thats the port area , but how can i know how long theport should be :S ( am newbee in box construction)





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    Re: how BIGG THE PORT SHOULD BE ??

    anyone know the dimensions in the trunk of a G20 year 93?



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    Re: how BIGG THE PORT SHOULD BE ??

    Man, the english language gets raped again.



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    Re: how BIGG THE PORT SHOULD BE ??

    hey BiaBia , u r out of line





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    Re: how BIGG THE PORT SHOULD BE ??

    Quote Originally Posted by InhumanAcura
    Use as much port as your subs cone area....12" = 80sq"

    hmm not quite sure. cone area of a 12" circular sub is 113 square inches. for 1 12" sub u only need 30-50 square inches, unless u r going strickly spl which 60 would do for that.




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