I am having an issue and wanted to see if anyone had any similar experience or thoughts on a potential source.
I have three rooms were we have audio only (Kitchen, Dining Room and a "formal" living room). In Ceiling speakers in the kitchen and on wall in the other two rooms. I started to notice an issue one night in the dining room with the audio quality making a popping sound that seemed to be driven by the bass in the song. I'm not listening to heavy bass driven songs and most Christmas songs do not feature a heavy bass! Issue happens with all sources - tuner, my music and streaming. At first I thought it might be an issue with the speakers but when it spread to the other rooms I am starting to wonder if there is a hardware issue. To be clear, issue was originally only in the dining room and over a period of months has spread.
We haven't done any construction so I don't think it is dust. No activity in the rack so I don't think any wires were jarred loose. No issues in the rooms where we have TVs and AV receivers. The amp and tuner are original equipment from 2009 so I suppose it could be a hardware issue.