Question about Pioneer 250WX1 360X1 800W MAX CAR AMP Car Audio Amplifier

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Amp stoped working

I have had a pioneer 800 watt amp hooked up to 2 10in rockford fosgate P1'S for severall months now. They worked fine up until I added 4 interior punch speakers and a 1.6 farad capacitor. When the car is running and the cd player is off the cap reads 12.2 when the cd player is on the cap reads "lo." I'm puzzled i checked all my connections and the seam fine all of a sudden it just stopped working.

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  • Justin Case
    Justin Case May 11, 2010

    Have you noticed any other circumstances that cause the cap to read 'lo'?

    Do you have a multimeter to check actual voltage at the cap?


    • With CD off.

    • With CD on.



  • Justin Case
    Justin Case May 11, 2010

    Is it a dedicated line going from the battery to the capacitor and amp? Just the cap, the amp and nothing else?

    Does the CD player otherwise function correctly?


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You need to run a larger power/ground cable. If you are reading low, you are not getting the kind of voltage that the amplifier requires to run, you may have been fine before adding the other products but if you wired them all to the same power wire (say an 8 gauge) you'd encounter problems. You should probably use a 2 gauge or at least a 4 gauge power kit.

Posted on Jul 17, 2008

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