Dedicated line problem

I had my house installed with one dedicated line running to my entertainment center when I built it. In the breaker box there is one circut dedicated for the entertainment center.

I have a full Isoclean setup $$$ running out of this line. When I turn on/off a ceiling fan/light I can hear a loud popping sound coming from my speakers. Should this happen or did the install go wrong?

What can I do to fix this problem if there is one?