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Reload Thread: Need help with my JL 12"W6

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    diabolik's Avatar
    diabolik is offline Junior Member



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    Need help with my JL 12"W6

    I am running my JL 12"W6 in a sealed box that sits in the back of my hundai excell. It basses good and the car rattles. I am only running one voice coil at 300 watts at the present moment but now I have a 600 watt amp and tried to run both the voice coils paralel at 2 or so ohms( I don't know the calculations for ohms) and it did not sound as good. It sounded sloppy and diustorted the bass. Are the JL's designed to run a ported or bandpass box when they run both voice coils. Should I run my voice coils in series at 8 or so ohms My amp is a MEI DA4450 and runs 600W max when bridged mono. How can I meashure the ohms it puts out when bridged.
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    jellydime's Avatar
    jellydime is offline Senior VIP Member



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    well the first thing you need to know is that you can't change the ohm load on a sub, you can only change wiring configurations of the speakers to lower or raise the resistance on an amplifier
    Your problem is probably 1 of 3 things...
    1. There is a problem in your wiring setup from the amp to the subs
    2. Your amp is not stable at the resistence level it is running at (which could be a result of reason number 1, you could accidently have it running at 1 ohm...)
    3. Your gain is set way too high on your amplifier

    As for your question about sealed, ported, and bandpass...
    I wouldn't advise going with a ported box with JL subs because you will lose a significant amount of SQ...
    I would HIGHLY advise not to go with a bandpass box because of the HUGE loss in SQ and the narrow frequency band that is picked up...Bandpass boxes are for high school kids who like to bump around town listening to rap...just my opinion!
    Keep it loud!
    JELLYDIME




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    SKMexiFry's Avatar
    SKMexiFry is offline ...For a Porkchop, uh...



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    I would say wire the 12W6 vc's in parallel, which would be 3 ohms. Then bridge the amp, and that 600 W max is probably at 4 ohms, so with it bridged and running at 3 ohms, you could probably run 750 out of it. Basically, hook the 2 positive terminals on the sub to the positive terminal of the bridged amp, and do the same with the negative terminals. That sub should sound excellent in a sealed box, so i think that your gain is set wrong. Try putting the gain at about 1/3 of the way up, and the same with the bass boost(if there is one), and start from there and tailor it if you need to. Hope I could help, and if you have any more questions just post back!



    The perfect amount of bass will make you

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    diabolik's Avatar
    diabolik is offline Junior Member

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    Thanks allot guys, I will try your suggestions.




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