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Reload Thread: My box size for 2 12L7s help out please!!!

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    My box size for 2 12L7s help out please!!!

    OKay...I have never made a ported box...I usually go sealed bc i like the sound of sealed.......and alot less work to make.
    I have 2 Kicker L7 12s 2004-2005 models Dual 4 ohm

    Now im building my box to the specs i can fit in my trunk and still get to the spare tire.
    Material 3/4 MDF
    The box exterior is 20 deep, 33 wide, 17 high.
    interior is 18.5 deep, 31.5 wide and 15.5 high.

    So after i started puting it together i started to design my ports....hmmm if i port it using a sloted style port with the mdf i will only have like 1.7 cubes per side???for sure not enough......
    So I figured out a slotted style is not gonna work into the build....So would it be fine if i used two 3inch by 12 inch long ports?????
    Or should i do one chamber and a long as port across the top of the box about 2 inches?
    Also should i seperate chamber them just incase i want to do two seperate amps next year???
    They will both be powered by a PA 3000DB for now.
    Here a a couple pics of whats goin on.

    Thanks for any input!
    Jay
    sound domain page......http://www.sounddomain.com/ride/785985







    RIDE: 1995 Chrysler LHS
    ELECTRICAL: Stock w/ Big 3 1/0awg
    HEAD UNIT: Clarion DXZ855MP
    FRONT STAGE: JBL CS206 & Kicker KS3.5s(dash)
    REAR STAGE: JBL CS396
    FRONT & REAR AMP: Kenwood KAC-849
    SUBS: None for now
    SUB AMP: None for now
    WIRING: Lightning Audio 1/0 w/ Stinger Interconnects
    SECURITY: Clifford Arrow 5





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    saywhat?'s Avatar
    saywhat? is offline satx120, jealous?



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    Re: My box size for 2 12L7s help out please!!!

    with those demensions u have 5.227 cubes.....the subs shouldnt take more than .4 i believe, and the port shouldnt take more than .8 so im sure u have atleast 4 cubes......maybe im wrong and make it one chamber PLEASE




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    Jay_Rich's Avatar
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    Re: My box size for 2 12L7s help out please!!!

    Hmmm since it is gonna be a tad bit small should i poly fill the s*** outta it????I know when i made my box for three alpine Type S's I mad the box 4.229 cubes sealed and polyfilled it with 3 pounds of it and it hammered!!!!
    But I think the poly fill will try to come out the ports lol

    Jay





    RIDE: 1995 Chrysler LHS
    ELECTRICAL: Stock w/ Big 3 1/0awg
    HEAD UNIT: Clarion DXZ855MP
    FRONT STAGE: JBL CS206 & Kicker KS3.5s(dash)
    REAR STAGE: JBL CS396
    FRONT & REAR AMP: Kenwood KAC-849
    SUBS: None for now
    SUB AMP: None for now
    WIRING: Lightning Audio 1/0 w/ Stinger Interconnects
    SECURITY: Clifford Arrow 5


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