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    tooshort_128's Avatar
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    Round Port Area Question

    I just figured out that a rule of thumb for round ports is about 8 square inches per cubic foot of airspace. First off, is this correct? If so, I'll have an enclosure for a 1" sub that is 2.34 cubes after sub displacement. I was probably looking at 1 4" Aero Port that will be 14.15" long to tune the box to 30hz. This would only give me about 12.56 in^2 of port area and if 8in^2 per cube is right, I would need 18.72in^2. My question is would this give me a lot of port noise and kill the SQ of my sub?



    HU: stock Nav unit
    Front Stage: stock Bose
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    Sub Amp: Diamond Audio D5 1200.1
    Sub: 12" TC Sounds LMS-R
    Enclosure: 2 cube rear loaded horn @32Hz (thanks Jason aka Mobile Enclosures)
    Electrical: Kicker 0 gauge, Big 3, Stinger SP1000

    REFS: groundpound4200, NeedDirections, connersdad19, psych0ticnemes1, tez4life, 4OZGLOVES, gazayute




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    Re: Round Port Area Question

    i would probly do 2 3" aeros but thats still only 14 square inches



    '08 Ford Escape XLT
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    Re: Round Port Area Question

    You have a 1" sub?




    Ben Hemp
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    Re: Round Port Area Question

    Quote Originally Posted by Lakota View Post
    You have a 1" sub?
    x2 in a 2.34 cu ft box?



    2009 Mazdaspeed 3
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    Re: Round Port Area Question

    I'm assuming you have a 12. Anyways, I'd recommend 2 4" ports if you can fit it.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
    2008 MECA S1 KY State Champion, 151.0 dB
    2008 MECA S1 WorldChampion, 151.8 dB
    2010 MECA scores: 150.9 dB S2, 151.6 dB S3
    Refs: smd4life, Subst4nce, wccoug21, dacheatham, thegreatestpenn, jshak07

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    tooshort_128's Avatar
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    Re: Round Port Area Question

    yeah, sorry bout that. It is a 12 that displaces .16 cubes in a 2.5 cube box that gives me 2.34 after displacement. If I put two ports in it they would be longer than I could fit. My box is only going to be about 15 or so deep and go all the way across my trunk. Maybe I could bend them up with elbows somehow?



    HU: stock Nav unit
    Front Stage: stock Bose
    Rear Fill: stock Bose
    Sub Amp: Diamond Audio D5 1200.1
    Sub: 12" TC Sounds LMS-R
    Enclosure: 2 cube rear loaded horn @32Hz (thanks Jason aka Mobile Enclosures)
    Electrical: Kicker 0 gauge, Big 3, Stinger SP1000

    REFS: groundpound4200, NeedDirections, connersdad19, psych0ticnemes1, tez4life, 4OZGLOVES, gazayute

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