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    HELP! Simple question about TUNING freq

    I've got 05 type R 12 DVC 4ohm coming in soon. I'm planning on putting it in a ported enclosure (around 2-2.5ft^3) wired to 2ohm load and pushed by V12 mrd-605 (guess around 550W at 13.8volt)
    the sub is playing DIRECTLY into my sedan's cabin through a cutout in the plate behind the rear seats. port will have to face the trunk though (up the deck or back of the trunk-which way???)


    anyway, I will be biulding an enclosure for it, however I don't really understand the difference between low and high tuning.

    I know I can look up different set ups at WinSD and YES I KNOW THERE ARE TO MANY VARIABLES to easly answer the folowing question but what's the difference in sound.

    from my initial observations of WinSD looks like the higher the tuning freq the lounder it plays everything below it.

    let me just lay it this way. I do look for good sound quality, but it's not my top priority. I just LOVE when I hear (different cars of course) that super LOW THUMP that almost takes your breath away. I don't want a booming system that will cause the rattling of everything around, I just love the looow THUMP like that of a bass drums, but not boom.

    PLEASE!!! I know you can help me guys


    thanks



    -Greg
    Alpine 9855 run 3 way active
    ED NINe.4
    ED NINe.1
    Dayton RS 180
    LPG 25 NFA
    Alpine 12" Type R DVC4, 2005ed, 2.5cu.ft tuned to 30Hz

    Alpine Type X 177a x-overs FOR SALE

    References: dleccord, 9512ss, guy022077, PRIVATEpastry, bass_lover1, alpine3612, for more references check bimmerforums.com




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    Re: HELP! Simple question about TUNING freq

    sounds to me like you want a sealed box. this is a page i have refered to before. notice the peaks at certain freqs when ported boxes are used.

    http://www.soundsplinter.com/rls_ser...formation.html



    Current Setup:
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    Re: HELP! Simple question about TUNING freq

    I think you should shoot for mid to low 30's with a type arrrrrgh



    Eclipse CD5444
    DLS R6A's -> Aura RPM2300
    sold the subs because i don't drive much anymore

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    Re: HELP! Simple question about TUNING freq

    thanks for the input so far.

    is, say 32hz considered low tuning or what? what would mean tuning it to let's say 25Hz?



    -Greg
    Alpine 9855 run 3 way active
    ED NINe.4
    ED NINe.1
    Dayton RS 180
    LPG 25 NFA
    Alpine 12" Type R DVC4, 2005ed, 2.5cu.ft tuned to 30Hz

    Alpine Type X 177a x-overs FOR SALE

    References: dleccord, 9512ss, guy022077, PRIVATEpastry, bass_lover1, alpine3612, for more references check bimmerforums.com

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    Re: HELP! Simple question about TUNING freq

    Quote Originally Posted by PENER
    the sub will be playing DIRECTLY into my sedan's cabin through a cutout in the plate behind the rear seats. port will have to face the trunk though (up the deck or back of the trunk-which way???)
    does facing the port in different direction than the woofer cause adverse effects?



    -Greg
    Alpine 9855 run 3 way active
    ED NINe.4
    ED NINe.1
    Dayton RS 180
    LPG 25 NFA
    Alpine 12" Type R DVC4, 2005ed, 2.5cu.ft tuned to 30Hz

    Alpine Type X 177a x-overs FOR SALE

    References: dleccord, 9512ss, guy022077, PRIVATEpastry, bass_lover1, alpine3612, for more references check bimmerforums.com

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    Re: HELP! Simple question about TUNING freq

    anybody?



    -Greg
    Alpine 9855 run 3 way active
    ED NINe.4
    ED NINe.1
    Dayton RS 180
    LPG 25 NFA
    Alpine 12" Type R DVC4, 2005ed, 2.5cu.ft tuned to 30Hz

    Alpine Type X 177a x-overs FOR SALE

    References: dleccord, 9512ss, guy022077, PRIVATEpastry, bass_lover1, alpine3612, for more references check bimmerforums.com

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    Re: HELP! Simple question about TUNING freq

    usually you want the port and the sub facing in the same direction. There are some exception to this like crx style boxes, and others. 25hz is a really low tuning. For daily driving you probably wouldn't want to do too much lower than 30hz.



    Eclipse CD5444
    DLS R6A's -> Aura RPM2300
    sold the subs because i don't drive much anymore

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    Re: HELP! Simple question about TUNING freq

    Quote Originally Posted by justsayk
    25hz is a really low tuning. For daily driving you probably wouldn't want to do too much lower than 30hz.
    could you try describe what would be the difference in sound? I'm trying to understand all this



    -Greg
    Alpine 9855 run 3 way active
    ED NINe.4
    ED NINe.1
    Dayton RS 180
    LPG 25 NFA
    Alpine 12" Type R DVC4, 2005ed, 2.5cu.ft tuned to 30Hz

    Alpine Type X 177a x-overs FOR SALE

    References: dleccord, 9512ss, guy022077, PRIVATEpastry, bass_lover1, alpine3612, for more references check bimmerforums.com

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