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    ace_800's Avatar
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    How do I find the port length and diameter using pvc?

    Trying to find out if I should use 2 aero ports of 3" in diameter or 1 port of 4". They both would be around the same length for 32htz. Is there going to be a difference? Thanks
    Last edited by ace_800; 03-23-2007 at 07:19 PM.



    Current set up: Island bombed out 92 mazda 626. Stock rust bucket

    66 Pontiac GTO, modified stock radio, Crossfire CFA 302, Kicker KS6.2's in the front kicks, Crossfire CFA 452 for the 6x9's I need.





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    Re: How do I find the port length and diameter using pvc?

    Too many variables here.

    What sub?
    T/S parameters?
    Net volume of box?
    Tuning frequency?

    I have a hard time believing they"ll be "around the same length" and still have the same tuning frequency.



    Refs: Kmanian, Mj-TC, mennitti, iceteebone


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    Re: How do I find the port length and diameter using pvc?

    The tc9 subs that were being sold on here

    3.2^3

    approx 32htz

    I was using the psp-inc calculator

    Its coming up 12.45 with 1 4"
    and
    14.98 for 2 3"
    Last edited by ace_800; 03-23-2007 at 08:06 PM.



    Current set up: Island bombed out 92 mazda 626. Stock rust bucket

    66 Pontiac GTO, modified stock radio, Crossfire CFA 302, Kicker KS6.2's in the front kicks, Crossfire CFA 452 for the 6x9's I need.


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    Re: How do I find the port length and diameter using pvc?

    Anyone?



    Current set up: Island bombed out 92 mazda 626. Stock rust bucket

    66 Pontiac GTO, modified stock radio, Crossfire CFA 302, Kicker KS6.2's in the front kicks, Crossfire CFA 452 for the 6x9's I need.


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