Thank you. I was leaning towards them cause of all I have read about the caps causing fires. Just have to find some caps. Would you have a good place for replacements. Thanks for the nudge

Well I have been doing some more tinkering. My test bench is a 25amp power source that I use to run my old rubicon 502 that runs my home stereo sub. So that is how I fixed my 752 Phoenix ryval an other amps. So I put the 450 on the setup an I get a hum through the sub. Talk about frustrating. This a...

Sorry. This has been one of those irritating things an I forgot to say that it was happening at random also.

I would say maybe but it happens at random during songs also. So I'm still leaning towards something wrong with the amp.

It's not letting me upload the pics.

Ok. When I get stopped either tonight or tomorrow Thanks for the reply

Yes it's only the subs. Yes it still does it regardless of how loud it is. I figure it's the amp cause my zx400 nor my alpine do it. I have read different posting on the web about how the caps would start to go out an might do this but am not clear on how to diagnose them.

New to the forum long time looker. Problem with my Zx450 amp. When changing songs at the end or the beginning of another song it has a pop that comes through the speakers it does it all volumes I have checked the grounds and power supply. Bear with my ZX 400 and also the problem isn't there with my ...