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Reload Thread: Benefits of a larger port area

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    Benefits of a larger port area

    I know the basics on this one but havent had time to do the testing in the past.. as an example. . Take a 12" sub ported 2^ft ,tuned to... 35. By most avg builders some where in the 12-16 ^inches per foot rule comes in. So by keeping the same tuning but just jumping your port area from say a 2x12 ( 24 sq in port ) to a 4x12 or so ( then also making the port longer )

    Just wondering what sound or spl differences are noticed



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    Re: Benefits of a larger port area

    more area= less velocity= no port noise, is all i know



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    Re: Benefits of a larger port area

    umm you realize its cubic feet of the box x 16 not sub size right? suposidly thats the optimum for the HD3 I dont know about other subs.




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    Re: Benefits of a larger port area

    larger port compensates for smaller enclosures from what i was told.



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    Re: Benefits of a larger port area

    larger ports TAKE UP more room, not make up for not having enough, unless i'm missing something.



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    Re: Benefits of a larger port area

    Quote Originally Posted by mtdewelf View Post
    larger ports TAKE UP more room, not make up for not having enough, unless i'm missing something.
    i musta missed it too then

    larger ports = beneficial when the ports were too small to begin with...



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    Re: Benefits of a larger port area

    i was refering to SPL wise.



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    Re: Benefits of a larger port area

    Quote Originally Posted by mtdewelf View Post
    more area= less velocity= no port noise, is all i know
    Kinda of what i was looking for

    Quote Originally Posted by nVRuckus View Post
    umm you realize its cubic feet of the box x 16 not sub size right? suposidly thats the optimum for the HD3 I dont know about other subs.

    Yea.. On avg u use about 15 square inches / per cubic foot of enclosure size right.. avg..


    Mainly wondering if there has been any noticable changes to the ear or mic with larger port area..

    example
    Having a standard manufactures spec box with like 24 Sq inches port for a 12 in a 2 ^ft enclosure tuned to 35

    or

    Building the same size 2^ft box ( net ) but just making the port to 48 inches ( 4x12 or something along those lines)



    Ref: Zeuslicious -



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    Re: Benefits of a larger port area

    My new box is 4 cubes, and 113 inches of port I havent gotten a chance to hook it up yet, waiting on my new amp, but I'll let you know what the difference is with this and my previous box of 85 square inches.




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    Re: Benefits of a larger port area

    ^^^dam im at 9.3 cubes with 107 inches of port.....thats alot for only 4 cubes cant wait to hera how it sounds



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    Re: Benefits of a larger port area

    Quote Originally Posted by dvrmstrng View Post
    ^^^dam im at 9.3 cubes with 107 inches of port.....thats alot for only 4 cubes cant wait to hera how it sounds
    that would be pretty avg along the 15 sq inches per cubic foot tho..

    Quote Originally Posted by PhatTonyDeMarco View Post
    My new box is 4 cubes, and 113 inches of port I havent gotten a chance to hook it up yet, waiting on my new amp, but I'll let you know what the difference is with this and my previous box of 85 square inches.

    That is alot bottom line , just wondering when you know your limits, like when it gets to big or etc what can happen



    Ref: Zeuslicious -



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    Re: Benefits of a larger port area

    Quote Originally Posted by hzsogood View Post
    that would be pretty avg along the 15 sq inches per cubic foot tho..
    how do you figure? 4 cuft x 16 = 64sqin. he is doubling it. Im looking to do probably 6-8 4" flares on 5 cubes myself staying around thw 16 mark for my MT. and thats like 76 sqin @ 6 or 102 @ 8




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    Re: Benefits of a larger port area

    I always try to get the biggest port possible. thats just personal preference though.



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    Re: Benefits of a larger port area

    Quote Originally Posted by nVRuckus View Post
    how do you figure? 4 cuft x 16 = 64sqin. he is doubling it. Im looking to do probably 6-8 4" flares on 5 cubes myself staying around thw 16 mark for my MT. and thats like 76 sqin @ 6 or 102 @ 8
    im missing something .. where are you getting the 16 from.. Am i wrong with saying a 9^ft box with 100 square inches of port is about a 20"x5" port



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    Re: Benefits of a larger port area

    i think theres a limit as to how much port area a sub can have.ithink if u have 2 much port area the sub will act as if it was free air imho

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