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  1. #1
    MemphisCherokee's Avatar
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    need a fart box design

    looking for a design
    for 2 memphis PR12's
    max dimentions: 20 deep, 18 tall, 40 wide
    t/s:
    fs:32hz
    vas:2.16 cf
    mms:136 grams
    xmech:.352 in
    qms:5.37
    qes:.42
    qts:.39
    sensitivity:88 dB
    coil diameter:2 in
    Bl:15.41
    coil config: single 4
    2 drivers
    250w each
    im looking for purely SPL
    total fart box
    around 50 Hz or whatever will get me the most output
    honestly, i'd rather not pay for the design, im broke enough as it is
    i would usualy do it my self but i dont have the time right now and ive never built a purely spl box
    all i really need is airspace, port area/length, and orientation



    01 Jeep WJ
    Head Unit: Kenwood KDC-x993
    Front & Rear: 16-MC2.100 driving Memphis Mclass 6.5s
    Sub: Memphis Mojo 4k Driving a custom Sundown Nightshade
    Wire: Memphis Mflex

    Quote Originally Posted by germandark View Post
    MMMMM I LUV EATING CURRENT AND MAKING WIRES GET HOT THEN CATCH FIYA

    Love,

    HK4000D
    Quote Originally Posted by kcdc30 View Post
    i agree. i routinely play cd's in my amplifier.




  2. #2
    MemphisCherokee's Avatar
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    Re: need a fart box design

    actually, im less looking for a straight up design as i am looking for suggestions and opinions concerning size and tuning/ orientation
    its going in a jeep cherokee



    01 Jeep WJ
    Head Unit: Kenwood KDC-x993
    Front & Rear: 16-MC2.100 driving Memphis Mclass 6.5s
    Sub: Memphis Mojo 4k Driving a custom Sundown Nightshade
    Wire: Memphis Mflex

    Quote Originally Posted by germandark View Post
    MMMMM I LUV EATING CURRENT AND MAKING WIRES GET HOT THEN CATCH FIYA

    Love,

    HK4000D
    Quote Originally Posted by kcdc30 View Post
    i agree. i routinely play cd's in my amplifier.

  3. #3
    CaliforniabOY5's Avatar
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    Re: need a fart box design

    put paypal ready in your title and u'll have more than enough ppl wanting to help



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    MemphisCherokee's Avatar
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    Re: need a fart box design

    thats the thing, im ****ing broke, hahahaha



    01 Jeep WJ
    Head Unit: Kenwood KDC-x993
    Front & Rear: 16-MC2.100 driving Memphis Mclass 6.5s
    Sub: Memphis Mojo 4k Driving a custom Sundown Nightshade
    Wire: Memphis Mflex

    Quote Originally Posted by germandark View Post
    MMMMM I LUV EATING CURRENT AND MAKING WIRES GET HOT THEN CATCH FIYA

    Love,

    HK4000D
    Quote Originally Posted by kcdc30 View Post
    i agree. i routinely play cd's in my amplifier.

  5. #5
    Louisiana_CRX's Avatar
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    Re: need a fart box design

    Do a CRX style box...subs up port back.....put each sub in a 1.5 cu ft chamber counting port and basket displacement...use 2 5" ports per chamber...PVC or aeros even better if broke make your own....make each port length about....16" long.....You should be set....




    Current 2010 Louisiana USACi State Records :

    Trunk 0-1000.................. 151.3
    StreetBeat 2................... 145.6
    Stock 1801-up.................153.8
    SuperStock 1801-up..........154.2
    Top three in 11 out of 26 power classes and Louisiana USACi Points Leader at 465

  6. #6
    MemphisCherokee's Avatar
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    Re: need a fart box design

    allrighty
    thanks alot
    now, port back, this is in the trunk space of a jeep, so.... should i but the back seat down?



    01 Jeep WJ
    Head Unit: Kenwood KDC-x993
    Front & Rear: 16-MC2.100 driving Memphis Mclass 6.5s
    Sub: Memphis Mojo 4k Driving a custom Sundown Nightshade
    Wire: Memphis Mflex

    Quote Originally Posted by germandark View Post
    MMMMM I LUV EATING CURRENT AND MAKING WIRES GET HOT THEN CATCH FIYA

    Love,

    HK4000D
    Quote Originally Posted by kcdc30 View Post
    i agree. i routinely play cd's in my amplifier.

  7. #7
    MemphisCherokee's Avatar
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    Re: need a fart box design

    i didnt even pay attention, i thot u sed port forward
    anyways
    thnaks alot man



    01 Jeep WJ
    Head Unit: Kenwood KDC-x993
    Front & Rear: 16-MC2.100 driving Memphis Mclass 6.5s
    Sub: Memphis Mojo 4k Driving a custom Sundown Nightshade
    Wire: Memphis Mflex

    Quote Originally Posted by germandark View Post
    MMMMM I LUV EATING CURRENT AND MAKING WIRES GET HOT THEN CATCH FIYA

    Love,

    HK4000D
    Quote Originally Posted by kcdc30 View Post
    i agree. i routinely play cd's in my amplifier.

  8. #8
    Louisiana_CRX's Avatar
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    Re: need a fart box design

    Try to fit the box so the port is about 7" from the rear hatch ....Have subs firing up as close to the rear seat as possible......The box will probally be sorta shallow...make sure you have at least 2" below the magnet so the subs can breath...If you share chamber....with subs...I would...put the ports fairly close to each other side by side ...and have them opposite of where your vehicle meters best from.....For instance...you meter best on passenger side...have the two ports on the drivers side of the box towards the rear.....Hope this helps




    Current 2010 Louisiana USACi State Records :

    Trunk 0-1000.................. 151.3
    StreetBeat 2................... 145.6
    Stock 1801-up.................153.8
    SuperStock 1801-up..........154.2
    Top three in 11 out of 26 power classes and Louisiana USACi Points Leader at 465

  9. #9
    MemphisCherokee's Avatar
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    Re: need a fart box design

    thanks bro
    very helpful
    i owe ya one
    barely missed 3rd place last night and i intend to take atleast 3rd at battle of the highschools later this month



    01 Jeep WJ
    Head Unit: Kenwood KDC-x993
    Front & Rear: 16-MC2.100 driving Memphis Mclass 6.5s
    Sub: Memphis Mojo 4k Driving a custom Sundown Nightshade
    Wire: Memphis Mflex

    Quote Originally Posted by germandark View Post
    MMMMM I LUV EATING CURRENT AND MAKING WIRES GET HOT THEN CATCH FIYA

    Love,

    HK4000D
    Quote Originally Posted by kcdc30 View Post
    i agree. i routinely play cd's in my amplifier.

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