Hi I'm having an issue with my HW-Q90r and had the same issue with my HW-Q80r before that.
If say I change channel from an HD source to SD source and vice versa the soundbar emits a loud popping sound. This also happens quite a lot when switching inputs. Also, when pausing and then playing while streaming, the soundbar often emitts a startling crackle which also effects the rears. I've found myself now muting the tv when I expect these issues to occur which I shouldn't have to do .
I'm using high quality Belkin 48Gbps Hdmi cables.
