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    DarkFox's Avatar
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    Is this to big? Kicker L7 12 box.

    Hey all, havent posted in a while, trying to really push a l7 12 but wanted to see if this is too much or not.. the plot looks good on WinISD but I know that doesnt always show the full picture, anyway, this is what I am looking at.

    3.5cu.FT tuned to ~31 Hz with 31.25sq.In port area

    Going for good SQ with a fair amount of bump (going in family car)

    Driving it with 800w RMS

    Thanks for any info.



    Quote Originally Posted by heyman421
    If SPL is your main objective, get 10's or 12's instead.
    Current System
    Car: 2008 WRX
    HU: Pioneer AVIC-D3
    Fronts: Tweeters up top
    Infinity 2ohm 3-ways in the doors
    Rears: Infinity 2ohm 3-ways in the doors
    Mid/High amp: HiFonics Zeus ZXi 4406 @ 110 X 4 rms
    Subs: 2x 12" Kicker L7 D4s
    Sub Amp: HiFonics Brutus BXi 2006D @ 1ohm (2KW RMS)

    98 Mustang Work Log (pics)
    08 WRX Work Log(Pics)




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    Re: Is this to big? Kicker L7 12 box.

    Talked to a friend, recomended more port area.... so this is what happened, need to know if I should have some wood re-cut.

    Make the port 3.5 X 12.5 X 26.75
    The increase in port displacement inside the box drops it from 3.5 to 3.25 for woofer after displacments and tunning would go to 33. Do you guys think this is better? sounded about right to me, gets me up to about 42sq In port area



    Quote Originally Posted by heyman421
    If SPL is your main objective, get 10's or 12's instead.
    Current System
    Car: 2008 WRX
    HU: Pioneer AVIC-D3
    Fronts: Tweeters up top
    Infinity 2ohm 3-ways in the doors
    Rears: Infinity 2ohm 3-ways in the doors
    Mid/High amp: HiFonics Zeus ZXi 4406 @ 110 X 4 rms
    Subs: 2x 12" Kicker L7 D4s
    Sub Amp: HiFonics Brutus BXi 2006D @ 1ohm (2KW RMS)

    98 Mustang Work Log (pics)
    08 WRX Work Log(Pics)

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    CBFryman2's Avatar
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    Re: Is this to big? Kicker L7 12 box.

    Big means more efficent and generally a flatter responce.




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    Re: Is this to big? Kicker L7 12 box.

    eh in my opinion i think that u could go smaller if you want to, and more than 16 sq inches of port is never recommended. so just run by that rule but this is one of the fun/expensive parts of this hobby, testing to see what works haha good luck



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    Re: Is this to big? Kicker L7 12 box.

    Quote Originally Posted by Ctminime View Post
    eh in my opinion i think that u could go smaller if you want to, and more than 16 sq inches of port is never recommended. so just run by that rule but this is one of the fun/expensive parts of this hobby, testing to see what works haha good luck
    more than 16 square inches of port is never recommended ?




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    Re: Is this to big? Kicker L7 12 box.

    I'm with big sherm on that one.... no more then 16" of port? First time I have heard that in 11 years of car stereo......

    So you guys think I should go with the first one I posted or second? I am leaning towards the slightly smaller box (.25 cu ft smaller) with the much bigger port.

    Still a smooth plot, with a much more efficent(sp?) port, and another 1.5db gain in the 30ish to 50ish hertz range.



    Quote Originally Posted by heyman421
    If SPL is your main objective, get 10's or 12's instead.
    Current System
    Car: 2008 WRX
    HU: Pioneer AVIC-D3
    Fronts: Tweeters up top
    Infinity 2ohm 3-ways in the doors
    Rears: Infinity 2ohm 3-ways in the doors
    Mid/High amp: HiFonics Zeus ZXi 4406 @ 110 X 4 rms
    Subs: 2x 12" Kicker L7 D4s
    Sub Amp: HiFonics Brutus BXi 2006D @ 1ohm (2KW RMS)

    98 Mustang Work Log (pics)
    08 WRX Work Log(Pics)

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