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    Cahm Rohn's Avatar
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    Help with slot port.

    I want to build a box for my 2 mtx 9512-44's. The plan is to go 6.89cuft. @32 hz port length of 24.74. So how long would I have to make the walls. Box is L38 W24 H16



    1978 ford LTD
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    orion 8004
    xxx comps
    1 18 PSI MT 5cuft @ 32htz
    2 saz1500d's strapped @ 1.4
    250 amp mechman alt
    (ref's) Digital B, mrwigglezdj,turnitdown,MillzThaYungin(2),smd4life, shallowfu bikinpunk,fixxer,sxpimpin,whiteice,jayisking,mavss olja,earthman,drivingreckless,loudwhat,on1wheel01, ARMed&bangin.Stubbs563,nom nom, haseebch




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    Re: Help with slot port.

    bump anyone



    1978 ford LTD
    Alpine 9883
    orion 8004
    xxx comps
    1 18 PSI MT 5cuft @ 32htz
    2 saz1500d's strapped @ 1.4
    250 amp mechman alt
    (ref's) Digital B, mrwigglezdj,turnitdown,MillzThaYungin(2),smd4life, shallowfu bikinpunk,fixxer,sxpimpin,whiteice,jayisking,mavss olja,earthman,drivingreckless,loudwhat,on1wheel01, ARMed&bangin.Stubbs563,nom nom, haseebch

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    Cahm Rohn's Avatar
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    Re: Help with slot port.

    Breakfast bump



    1978 ford LTD
    Alpine 9883
    orion 8004
    xxx comps
    1 18 PSI MT 5cuft @ 32htz
    2 saz1500d's strapped @ 1.4
    250 amp mechman alt
    (ref's) Digital B, mrwigglezdj,turnitdown,MillzThaYungin(2),smd4life, shallowfu bikinpunk,fixxer,sxpimpin,whiteice,jayisking,mavss olja,earthman,drivingreckless,loudwhat,on1wheel01, ARMed&bangin.Stubbs563,nom nom, haseebch

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    Re: Help with slot port.

    why are you set on that length? you should decide on a port area first, then calculate the port length




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    Cahm Rohn's Avatar
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    Re: Help with slot port.

    Only set on 32hz that is the tength the calculator gave me



    1978 ford LTD
    Alpine 9883
    orion 8004
    xxx comps
    1 18 PSI MT 5cuft @ 32htz
    2 saz1500d's strapped @ 1.4
    250 amp mechman alt
    (ref's) Digital B, mrwigglezdj,turnitdown,MillzThaYungin(2),smd4life, shallowfu bikinpunk,fixxer,sxpimpin,whiteice,jayisking,mavss olja,earthman,drivingreckless,loudwhat,on1wheel01, ARMed&bangin.Stubbs563,nom nom, haseebch

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    Re: Help with slot port.

    14.5x3 " port @ 32 hz is only a 10" long port




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    Re: Help with slot port.

    Quote Originally Posted by Cahm Rohn
    I want to build a box for my 2 mtx 9512-44's. The plan is to go 6.89cuft. @32 hz port length of 24.74. So how long would I have to make the walls. Box is L38 W24 H16

    The tuning i got for the length you have w/ a 14.5x3" port area is around 24 hz




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    Re: Help with slot port.

    Sorry port area is 6.5x14.5



    1978 ford LTD
    Alpine 9883
    orion 8004
    xxx comps
    1 18 PSI MT 5cuft @ 32htz
    2 saz1500d's strapped @ 1.4
    250 amp mechman alt
    (ref's) Digital B, mrwigglezdj,turnitdown,MillzThaYungin(2),smd4life, shallowfu bikinpunk,fixxer,sxpimpin,whiteice,jayisking,mavss olja,earthman,drivingreckless,loudwhat,on1wheel01, ARMed&bangin.Stubbs563,nom nom, haseebch

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    Re: Help with slot port.

    Quote Originally Posted by Cahm Rohn
    I want to build a box for my 2 mtx 9512-44's. The plan is to go 6.89cuft. @32 hz port length of 24.74. So how long would I have to make the walls. Box is L38 W24 H16

    Well u have ur answer now... Make the port 24 3/4 long.... At 6.5 inches wide... Not sure what ur asking




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    Re: Help with slot port.

    Quote Originally Posted by Cahm Rohn
    Sorry port area is 6.5x14.5

    Too much port area imo... almost 100^in for those 12s




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    Re: Help with slot port.

    Ok I used georges tutorial and it f*%$#@ me all up, so how would I find out what the actual length of the walls would have to be.



    1978 ford LTD
    Alpine 9883
    orion 8004
    xxx comps
    1 18 PSI MT 5cuft @ 32htz
    2 saz1500d's strapped @ 1.4
    250 amp mechman alt
    (ref's) Digital B, mrwigglezdj,turnitdown,MillzThaYungin(2),smd4life, shallowfu bikinpunk,fixxer,sxpimpin,whiteice,jayisking,mavss olja,earthman,drivingreckless,loudwhat,on1wheel01, ARMed&bangin.Stubbs563,nom nom, haseebch

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    hzsogood's Avatar
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    Re: Help with slot port.

    Quote Originally Posted by Cahm Rohn
    Ok I used georges tutorial and it f*%$#@ me all up, so how would I find out what the actual length of the walls would have to be.


    what walls ??? port walls?? Its 23 3/4 in long..... You make a bend 6.5 inches from the back wall of the box and then make the port the rest of the length along the back wall...




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    Re: Help with slot port.

    your port will be 16inches down the depth side(24 in ) and 8 " down the back off the wall .. L shape




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    Re: Help with slot port.

    Thanx thats almost what I was coming up with I guess I was trying to make it harder than what it was.



    1978 ford LTD
    Alpine 9883
    orion 8004
    xxx comps
    1 18 PSI MT 5cuft @ 32htz
    2 saz1500d's strapped @ 1.4
    250 amp mechman alt
    (ref's) Digital B, mrwigglezdj,turnitdown,MillzThaYungin(2),smd4life, shallowfu bikinpunk,fixxer,sxpimpin,whiteice,jayisking,mavss olja,earthman,drivingreckless,loudwhat,on1wheel01, ARMed&bangin.Stubbs563,nom nom, haseebch

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    Cahm Rohn's Avatar
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    Re: Help with slot port.

    The min. usable port area was like 84 sq in., would going up about 10 affect it that much?



    1978 ford LTD
    Alpine 9883
    orion 8004
    xxx comps
    1 18 PSI MT 5cuft @ 32htz
    2 saz1500d's strapped @ 1.4
    250 amp mechman alt
    (ref's) Digital B, mrwigglezdj,turnitdown,MillzThaYungin(2),smd4life, shallowfu bikinpunk,fixxer,sxpimpin,whiteice,jayisking,mavss olja,earthman,drivingreckless,loudwhat,on1wheel01, ARMed&bangin.Stubbs563,nom nom, haseebch

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