Unplug the cable TV or satellite antenna cables. Grounding of these systems is the most common cause of ground loops.
Feedback in AV system
Pretty experienced Audiophile with a feedback issue that has me stumped. Digital sources (cable/ DVD) work fine without hum, but when I switch to analog sources (turntable, CD, I have noticable hum. Have unplugged individual components to isolate but to no avail.
Suggestions on best places to investigate?
Suggestions on best places to investigate?