My Sonos ARC’s center speaker has a lot of bass distortion (crackling during bass heavy scenes,when playing back any material that is lossless (Dolby TrueHD and Atmos (TrueHD) from a Blu ray player, LPCM from a blu ray player, etc.). Playing back lossy material in Atmos, Dolby digital, Dolby Digital+ (such as an Apple TV 4k), does not present the same issue (clean audio). This is something that I either haven’t noticed before (I bought the ARC back in August of this year), or most recently became an issue (maybe due to a firmware update?).
All components are connected to my LG 55 CX model (set to PASSTHROUGH), eARC HDMI out to the ARC. I have power cycled all components, used different HDMI cords, checked that all components and TV have the latest firmware, etc.
Any help would be much appreciated. since most of my watching is with lossless audio. Thank you.