amp cuts out

[nchris11]

hey everyone. im having a problem with my amp and would really like some help. a couple days ago i was listening to music in my car and as i turned the volume up my speakers started to cut off. my sub was still hitting without a problem but my speakers were cutting off at moderate volume. No problem with low volume. i checked my amp which is a polk audio pa660 and all the connections are good. One thing that i noticed was that when i have my car on ACC the amp powers up but i get no sound but when i turn my car on i get sound again. this only happens with the amp powering my speakers my sub amp and sub still function on ACC. also if i press my window switches to lower my windows the sound fades. could this be my battery? im sorry if this is a something simple but i dont know a whole lot about this stuff. thanks

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[BnGRacing 10+ year member]

Sounds like a poor ground. Move the ground from the amp to chassis of the car to a new location. You may have grounded it in an area with a poor spot weld or you could have left too much paint/primer between the ring and sheet metal. Hell, I've seen people ground amps to seatbelt buckles and the amp was pulling a ground thru the RCAs.

 

[nchris11]

i found the problem. i opened up the amp and looked around inside and i saw these two little things circled in red that were broken. can anyone tell me what they are? how this happened and if its easy to fix... thanks.