It appears to be the amp. I switched the rears with the fronts, at the amp, and the pop moved to one of the front speakers while the rears sound fine. I will have to wait until I can get the wife to turn off the amp while I am by the rears to be sure but it only sounds like the pop is coming from the front now. Hopefully this will not be an expensive fix as I stated before, I already have one amp in need of repair. Brian