Have an electrician check your service. It sounds like your electrical is arcing. There could be loose connections in the panel or at outlets.
If you have any appliances that are 120V they should be on the opposite line from your stereo or HT equipment, if 230V try putting the breaker for the appliance before your equipment to minimize the electrical draw effect when the devise starts and stops.
You may also need a larger service to stop the issue.
But do get an electrician to check it out and make changes if need be.
If you have any appliances that are 120V they should be on the opposite line from your stereo or HT equipment, if 230V try putting the breaker for the appliance before your equipment to minimize the electrical draw effect when the devise starts and stops.
You may also need a larger service to stop the issue.
But do get an electrician to check it out and make changes if need be.