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    my box?

    Hey guys I need to find out my cubic feet. And what it is tuned to. Subs displacement is .15 I have two so .30. The box is 32w 14.5h 21.5d with port 2w 13h 18d. Thanks



    2012 Chrysler 200 Limited.
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    HDC3 12" In 2.5 cubes @ ~32 hz. *15.9 in^2 per cube.
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    Re: my box?

    Box volume after subwoofer displacement is 4.28 cubes.
    And with the calculator I used, I figured you're tuned to around 26.5 hz which is a very low tuning. Not sure if it was accurate with the calculators I used...

    Box Volume = Subwoofer Enclosure Calculators, Fraction to Decimal, Parallel, Series, Port Length and Volume Calculators

    Port Tuning = Port Length Calculator
    And I just kept typing in different frequencies until it said a port length of 18.1 which is right at 26.5hz. This number seems low as hell and I might have just put something in wrong, lol.



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    Re: my box?

    Your box is 3.89 tuning I haven't messed with yet but probably a little higher tuning than you thought



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    Re: my box?

    Quote Originally Posted by dbeez View Post
    Your box is 3.89 tuning I haven't messed with yet but probably a little higher tuning than you thought
    Ya I got 3.78 after displacement of subs and port. Tuned at 28.88hz.
    Its a box that I got with my skar audio subs. Its supposed to be tuned to 32hz. And I would think it should be at 4 cubic feet.
    if I cut my port back so its at 32hz would that help with the higher bass?



    2012 Chrysler 200 Limited.
    Stock alt 160 amps.
    1 shuriken sk-bt60.
    HDC3 12" In 2.5 cubes @ ~32 hz. *15.9 in^2 per cube.
    AQ 2200.

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    Re: my box?

    If I cut it back to 12.25 I should be at 32.82hz. And 3.95ft right?



    2012 Chrysler 200 Limited.
    Stock alt 160 amps.
    1 shuriken sk-bt60.
    HDC3 12" In 2.5 cubes @ ~32 hz. *15.9 in^2 per cube.
    AQ 2200.

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    Re: my box?

    make a new box. you only have 26 sq" port area. you should have about 14-16 sq in per cu ft. thereby a a 4 cube box should have around 60 sq inch of port area- so a 15" x 4" slot would work much better, also the port would get longer the more area it is.




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    Re: my box?

    That box is as said above basically junk trash it and build a new better one or have one of us builders build you an accurate box.



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    Re: my box?

    Quote Originally Posted by dbeez View Post
    That box is as said above basically junk trash it and build a new better one or have one of us builders build you an accurate box.
    I can build one I just need help with the design.



    2012 Chrysler 200 Limited.
    Stock alt 160 amps.
    1 shuriken sk-bt60.
    HDC3 12" In 2.5 cubes @ ~32 hz. *15.9 in^2 per cube.
    AQ 2200.

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    Re: my box?

    @pro-rabbit or any of the other box guys will sell you plans for around 15 bucks.




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    Re: my box?

    I got 3.91 cuft tuned to 27.78 hz. Port area is extremely small at 6.65" / ft



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    Re: my box?

    Can someone check this for me? Box for two vvx 12. 37w 17h 21d
    port 4w 15.5h 32d. Port in the middle of the subs. 45 in port. I got 32.64hz and after all displacement 4.07cuft. 62.0in port area.



    2012 Chrysler 200 Limited.
    Stock alt 160 amps.
    1 shuriken sk-bt60.
    HDC3 12" In 2.5 cubes @ ~32 hz. *15.9 in^2 per cube.
    AQ 2200.

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    Re: my box?

    Someone? Is that right?



    2012 Chrysler 200 Limited.
    Stock alt 160 amps.
    1 shuriken sk-bt60.
    HDC3 12" In 2.5 cubes @ ~32 hz. *15.9 in^2 per cube.
    AQ 2200.

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    Re: my box?

    Bump



    2012 Chrysler 200 Limited.
    Stock alt 160 amps.
    1 shuriken sk-bt60.
    HDC3 12" In 2.5 cubes @ ~32 hz. *15.9 in^2 per cube.
    AQ 2200.

  14. #14
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    Re: my box?

    Quote Originally Posted by SMS View Post
    make a new box. you only have 26 sq" port area. you should have about 14-16 sq in per cu ft. thereby a a 4 cube box should have around 60 sq inch of port area- so a 15" x 4" slot would work much better, also the port would get longer the more area it is.
    What should the port area be for round ports?



    2012 Chrysler 200 Limited.
    Stock alt 160 amps.
    1 shuriken sk-bt60.
    HDC3 12" In 2.5 cubes @ ~32 hz. *15.9 in^2 per cube.
    AQ 2200.

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