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    NEED help with a box

    OK, I have a 15"XXX and i would like to build meself a box. Lookin for around 6cu ft. ported and i will be sending about 1500rms to it.

    Can anyone tell me how to tune it to a certain frequency and what not..
    i was lookin at something around 1.5ft(deep)x1.6ft(tall)x2.5ft(width)

    any ideas? i was gunna put the port on the right side too..will that made a difference?

    Please help!







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    mgaidica's Avatar
    mgaidica is offline CarAudio.com Veteran



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    if u didnt already get Jmac..


    http://www.loudspeakers101.com/VentCal1.htm



    2x JBL 1200.1 for sale...

    AIM- Mgaidica

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    jmac....i have tried before to get you




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    jmac i can't get a hold of you!




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    Originally posted by Biohazard
    jmac i can't get a hold of you!
    give me dimensions...I'll work out port for you.

    What you wanna tune it to?





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    Originally posted by snova031
    give me dimensions...I'll work out port for you.

    What you wanna tune it to?
    thats just it...i don't know what i want to tune it to




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    Originally posted by Biohazard
    thats just it...i don't know what i want to tune it to
    What are you looking for out of it? Anywhere from 28-40 would be ok for daily...





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    i want about 65% spl and 35%sq...basically...i was thinking about 35 hz...but i dunno




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    Biohazard's Avatar
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    Originally posted by Jmac
    I thought this was going to be a competition box ?
    thought about that...but i dunno, maybe i will try makin one with switchable ports...anyone have any ideas or thoughts on that?

    Jmac?




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    Randy Savage's Avatar
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    you can do a switchable port...but if you don't plan on competing, it's really pointless.


    35 Hz would be pretty good for that ratio...





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    i am planning on doing some local competitions at like Future shop and A&B sound...which are kinda like best buy and stuff like that....nothin big because i just don't have what it takes...i was thinkin 36hz but 35 is pertty close...


    if u go higher do that mean sq gets better?




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    ok well now i am thinking about 5cuft tuned to 34....is that ok? or not really that loud?




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    How far off of the back of the box should a slot port be??? is 3 inches from the back of the box from the end of the slot port enough??



    98 Grand Cherokee Limited 5.2L

    H/U: Alpine
    Speakers: Polk 6.5" GXR
    Amp: Hifonics BX1500D
    Subs: 2 12" RE SE's
    Box: Custom 3.3 Cubic foot ported
    Box tuned to 35 Hz
    In The Making: 5.1 cubic foot Box
    Ported to 28 Hz with
    Pluged Port (35 Hz)
    _____________________________

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    mgaidica's Avatar
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    the width of the port... but ide say 3" to keep it safe



    2x JBL 1200.1 for sale...

    AIM- Mgaidica

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    My box is 14.75 inches deep (including .75 thickness of front board, not back). So I can either go 1.5"x 14.6" x 12" tuned to 35hz (leaving 2.75 inches from back). Or I can go 1.75" x 14.6" 13" tuned to 35 hz (leaving 1.75 inces from the back). Which should I choose? Should I go with 1.75 width and just tune it higher to make the port shorter??



    98 Grand Cherokee Limited 5.2L

    H/U: Alpine
    Speakers: Polk 6.5" GXR
    Amp: Hifonics BX1500D
    Subs: 2 12" RE SE's
    Box: Custom 3.3 Cubic foot ported
    Box tuned to 35 Hz
    In The Making: 5.1 cubic foot Box
    Ported to 28 Hz with
    Pluged Port (35 Hz)
    _____________________________

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