I have a Fluance RT81 with built in amplifier. I hear a low puttering noise in the background, all the time. It’s erratic in pattern and volume, but constant.
When I turn the gain down (source) it decreases, but using the app volume control while playing music, you can hear it. I’ve reconnected the cables, rebooted everything, but the puttering is still there.
Best answer by AirgetlamView original