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    sleazebagger's Avatar
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    port equation???

    Trying to figure out what the final length to cut this port.

    thanks much

    2.3ft^3 in each chamber tuned to 33hz, 4 " areo port








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    Buck's Avatar
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    Re: port equation???

    I need:

    Vb
    Fb
    Port diameter



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

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    Re: port equation???

    Quote Originally Posted by Buck View Post
    I need:

    Vb
    Fb
    Port diameter
    33hz

    4" port

    2.3ft. ^3




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    Re: port equation???

    With flares 11.33, without flares 10.33, round to your liking.



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

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    Re: port equation???

    so i have another issue maybe someone can help me with...

    the install sheet says the port needs to be one diameter( 4" ) from any walls and this...





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    Re: port equation???

    They mean the opening of the port. The way you are showing it is fine.

    Say like the port is 4" diameter. The port needs to be at least 4" away from the interior wall where the opening of the port is.



    Alpine - ASE (local) - Batcap - C&D Tech - CT Sounds - DC - eD - Excessive Amperage - Rainbow

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    Re: port equation???

    if your not accounting for sub or the actual port displacement volume inside the box, your tuning will be higher



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