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  1. Equipment Repair and Modification
    It's my friend's amp, it's a PPI PC21400, the chrome version, and it has a mean turn-on pop. It has been confirmed to be the amp because it has been tested in multiple vehicles and on the test bench, (the test bench power supply won't even run the amp because it turns off the second you flip the...
  2. General Car Audio Discussion
    Just getting a new KDC-X994 into the dash with a Metra 99-3303 kit. While I was waiting for the kit I had the HU in the back connected with the amps and cross-overs sharing the same ground and power connections, etc. As soon as I moved it up front I noticed an increase in hiss (I never heard...
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