I think Ericjcabrera is on the right track. A poor contact connection can cause arcing and arcing will cause RFI/EMI on the mains as well as airborne.
Problem could be poor contact pressure of cheap residential grade receptacles as Ericjcabrera said.
The problem could also be in side the electrical panel....
For that you will need to hire an electrician.
*First have him listen for the pops from your speakers.
*He should then check all terminations inside the electrical panel for tightness including the incoming service hot conductors as well as the service neutral conductor. If the service conductors are aluminum he will also check for aluminum oxidation.
*He should also make sure the breakers are seated tightly on the branch circuit connecting bus ties.
If the panel has aluminum bus bars and aluminum branch circuit breaker bus ties I suggest he pull each breaker and check the breaker and bus ties for contact pressure as well for signs of arcing due to aluminum oxidation on the bus ties.
*Also why the electrician is there have him clean and tighten all connections of the grounding electrode system. He will know what that is.....
*Before the electrician leaves check your audio system again for pops.
Do not attempt to do any service work inside the electrical panel yourself.
Jim
Problem could be poor contact pressure of cheap residential grade receptacles as Ericjcabrera said.
The problem could also be in side the electrical panel....
For that you will need to hire an electrician.
*First have him listen for the pops from your speakers.
*He should then check all terminations inside the electrical panel for tightness including the incoming service hot conductors as well as the service neutral conductor. If the service conductors are aluminum he will also check for aluminum oxidation.
*He should also make sure the breakers are seated tightly on the branch circuit connecting bus ties.
If the panel has aluminum bus bars and aluminum branch circuit breaker bus ties I suggest he pull each breaker and check the breaker and bus ties for contact pressure as well for signs of arcing due to aluminum oxidation on the bus ties.
*Also why the electrician is there have him clean and tighten all connections of the grounding electrode system. He will know what that is.....
*Before the electrician leaves check your audio system again for pops.
Do not attempt to do any service work inside the electrical panel yourself.
Jim