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Pc2150 i have two ppi power class pc2150 amps that i bought on ebay..both the security stickers are intact..one amp "bumps" anytime you change tracks or start the stereo or push any buttons on the amp also when u adjust the gain it continuously moves the woofer with the turning of the knob...the other has none of these symptoms..any help would be great!!thanks!!
There are several resistors that open or change value in these amplifiers if the speaker wires are allowed to short to ground. There are generally two 10 ohm resistors near the RCA jacks. These are the most likely source of the problem.
If you haven't tried it yet, swap the signal lines from one amp to the other to see of the problem follows the signal line or remains with one amp.
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disassemble check internal fuse or for burned track also recheck the antenna connection -the thing that powers the amp on.Use a multimeter to test different points to ground potential. the one that doesnt have it has the problem.
Most likely you have your power and ground connections reversed on the amp. That will cause the fuse to blow immediately upon contacting the two sides of the fuse. If the fuse stays intact for a short while but pops after turning the amp/car on and your connections are correct then there's a problem with the amplifier and it either needs to be serviced or replaced.
Make sure your remote wire is hooked up in the right spot, also check your rca plugs and consider replacing them, check all fuses to make sure their not blown, a loose or not good ground wire or power supply wire will also cause this problem. If a power wire has a cut in it, that will also cause fuses to blow, as well as with a ground wire cut, ur amp will not be properly grounded.
Try any decent amp that runs 800-1000 watts RMS/continuous at 4ohms. Hifonics, Kicker, PPI, MTX etc. You should expect to pay $500+ for a decent amp. You get what you pay for.
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