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Reload Thread: More Box Calc Problems...

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    PhatTonyDeMarco's Avatar
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    More Box Calc Problems...

    Okay, so I get the following box plans from a free box calculator that someone mentioned before.. So I planned on making it. But then I downloaded WinISD to check those calculations... So I put in the plans from the online calculator, and it tells me that my tuning is at 48Hz. I was aiming for 40 So anyways, WinISD said that for a 40Hz tune in my box, I would need a 30" port length, my question is, can I just add to the port wall to make the box correct? I already have a lot of my wood cut out... What can I do to get the tuning correct?








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    Re: More Box Calc Problems...

    Hey phat, What is that site? I know I have it saved but cant seem to find it.



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    Re: More Box Calc Problems...

    http://accelerator-pedal.com/ported-box.asp

    It might not be accurate though... Hence my thread.




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    Rattlebrain's Avatar
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    Re: More Box Calc Problems...

    Thanks!!



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    Moe Lester's Avatar
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    Re: More Box Calc Problems...

    winisd is wrong, that plan is pretty close, depending on driver displacement.




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    Re: More Box Calc Problems...

    Jmac said it came pretty close.




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    Re: More Box Calc Problems...

    Quote Originally Posted by Moe Lester
    winisd is wrong, that plan is pretty close, depending on driver displacement.

    Can always count on Moe! Thanks man.

    Would you reccomend a different tuning for solely SPL? Not a comp car, just DD, but I am going for a single 12" sub, so I was thinking I need to tune higher to get the SPL I am looking for.

    And driver displacement is .25 cubes, BTW.




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    Re: More Box Calc Problems...

    Quote Originally Posted by PhatTonyDeMarco
    Can always count on Moe! Thanks man.

    Would you reccomend a different tuning for solely SPL? Not a comp car, just DD, but I am going for a single 12" sub, so I was thinking I need to tune higher to get the SPL I am looking for.

    And driver displacement is .25 cubes, BTW.
    IMO, 40 is a bit higher than i would tune for a daily system, but you may like 40 so its really up to you.




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