So I have a Power Acoustic amp and a Kicker Solo-Baric subwoofer, and for some reason, even when I have the receiver completely turned off I get this pulsing/pounding similar to a "heartbeat". There is nothing I can do to make it go away, except for turning on a song with a lot of bass and turning the volume up really high (not always what I want to have to do each time I get into my car). I purchased this amp a long time ago, so returning it is out of the question. I am just wondering if anyone has any insight into this issue and what I should do about it. I realize that I could take it to a professional, but I am trying to avoid spending hundreds of $$, if possible 
Any help is appreciated! Thanks!
Also, it is possible that my amp is too weak for the sub. Best Buy installed it and on the order slip they noted that the amp was a bit weak for the sub. Could this have anything to do with my issue?
Your amps probably over used and coil may be condensing
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Your amps probably over used and coil may be condensing
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make sure your using 8 gauge running from battery to amp and 8 gauge for ground. As well use 10 gauge or lower going to sub. when you run your wires make sure power is run on one side of the car from battery and audio and rem on the other so there isnt any frequency. As well amp and sub sound be around the same watts if amp is more you might blow sub if its turned to high
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check the ground and power insulation?
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you need a new amp
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check the ground, make sure its a good chassis ground not close to anything else. also check all the grounds, the battery ground, the stereo ground
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the first answer on the list should be the right answer, u may need a new amp afterall. BUT, u said when the stereo is off u still get the same problem? well, the remote turn-on wire for the amp might be getting on/off/on/off/on/off pulses from the deck itself! Or the relay inside the amp where that wire hooks up to is stuck clicking and keeps switching on/off/on/off/on/off and so on ….. check for these 2 problems b4 you go out there and buy a new amp. good luck.
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I would check for a good clean ground and possibly the polarity of the speaker wires
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on your amps speaker jacks if you have L+ and L- (or R+ and R-) connected to the same spaeker it will cause this pounding. you need to connect L- to R- for one speaker and L+ and R+ to the other spaeker.
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Halfords technician
it’s all in your head, you are playing it to loud, i heard it from here
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It could be a few of these problems. I would say check the remote wire at the amp, and then the ground wire at the amp. Does you battery die when you leave your car sit for a while?
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