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Reload Thread: putting woofers in smaller than ideal ported boxes

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    skydeaner's Avatar
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    putting woofers in smaller than ideal ported boxes

    putting woofers in smaller than ideal ported boxes-example.jpg

    Ok so for 2 of these 12's, win isd recommends a 7.9 cube box vented, the cyan line. If i shrink it down to the green line, or even smaller, do i just lose the spl depicted by my crappy drawing of an arrow, the area inbetween the two lines? Or is there other negative effects from doing this?

    it seems to lower group delay which is a good thing right?
    Last edited by skydeaner; 02-12-2010 at 04:46 PM.



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    Re: putting woofers in smaller than ideal ported boxes

    i see you browsing my thread, guest, and splrobb.... lol



    06 Toyota Matrix XR
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    Re: putting woofers in smaller than ideal ported boxes

    Yes, lower group delay is a good thing. You also gain higher mechanical power handling with a smaller box, but as you can see, you lose the low end output that you're doing a ported box for in the first place. Although, with a box tuned to 25hz, you're not going to be missing much....I actually like the smaller box graph the more that I look at it.



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    Re: putting woofers in smaller than ideal ported boxes

    The box becomes less efficient, so if you're limited on power then that's a bad thing but if you have plenty it'll be okay. As mentioned it does raise mechanical power handling as well.



    Dave The Box Guy


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    Re: putting woofers in smaller than ideal ported boxes

    Thanks guys great info i appreciate it



    06 Toyota Matrix XR
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    Re: putting woofers in smaller than ideal ported boxes

    noob question but would how would that affect impedence rise? would it rise more since its a less efficient enclosure? or am i just confused little boy...



    Quote Originally Posted by oldschoolboomer View Post
    well the 2 round twelves are pie r square and the l7's are already square so they would hit way harder especially when your amp puts out square waves which I assume is quite often


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    Re: putting woofers in smaller than ideal ported boxes

    Usually less rise in a smaller enclosure.



    Dave The Box Guy


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    Re: putting woofers in smaller than ideal ported boxes

    Quote Originally Posted by spltuscon View Post
    Usually less rise in a smaller enclosure.
    x2...



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