Polk Sub Box

Systems
Systems Posts: 14,873
edited July 2005 in Car Subwoofer Talk
Hello everybody!!!

Can you guys give me an idea of the size of a sealed box for my Polk Dx 12" (4 Ohm) if I use a 125 RMS amp...

I can't get any bigger amp, no money for that. I'm currently using a 0.77cu ft box but is too small...

Thanks in advance for the input
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Comments

  • 1996blackmax
    1996blackmax Posts: 2,436
    edited July 2005
    The sealed box volume should be .88 cubic feet.
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  • exalted512
    exalted512 Posts: 10,735
    edited July 2005
    id make the box about 1.2 ft^3 unless youre planning on getting a bigger amp soon, then id build it to .88 that way you wont have to make another one
    -Cody
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  • MacLeod
    MacLeod Posts: 14,358
    edited July 2005
    Actually the spec is .85 ft^3.
    Originally posted by exalted512
    id make the box about 1.2 ft^3 unless youre planning on getting a bigger amp soon, then id build it to .88 that way you wont have to make another one
    -Cody

    Isnt that a little too big? I know he's underpowering it but thats nearly 50% bigger.
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
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  • exalted512
    exalted512 Posts: 10,735
    edited July 2005
    http://polkaudio.com/car/specs.php?name=dx12-8

    it says .88

    i dont think the box is too big. hes playing it a nearly a quarter of its rated power
    -Cody
    Music is like candy, you have to get rid of the rappers to enjoy it
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  • MacLeod
    MacLeod Posts: 14,358
    edited July 2005
    http://www.polkaudio.com/car/toolbox/subboxplans/subbox_plan.php?id=9&mesurements=standard

    Thats weird. There it has .85 ft^3.

    Doesnt matter tho, .3 aint enough to worry about.

    1/4 its rated power? Good grief. If thats the case you should really look to getting a bigger amp. Youre missing out on a lot.
    polkaudio sound quality competitor since 2005
    MECA SQ Rookie of the Year 06 ~ MECA State Champ 06,07,08,11 ~ MECA World Finals 2nd place 06,07,08,09
    08 Car Audio Nationals 1st ~ 07 N Georgia Nationals 1st ~ 06 Carl Casper Nationals 1st ~ USACi 05 Southeast AutumnFest 1st

    polkaudio SR6500 --- polkaudio MM1040 x2 -- Pioneer P99 -- Rockford Fosgate P1000X5D
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  • neomagus00
    neomagus00 Posts: 3,899
    edited July 2005
    it's .03, and the .88 shows up more often than the .5, so i'd have to guess that that's the right answer.

    and yeah, a bigger amp is definitely in order...
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