Just took delivery of my cognac 4s two days ago, and noticed on the drive back and on the next day that certain songs (whether in CD or AAC format) are causing a crackle from the speakers! One of the main reasons for my switiching from an x6 to the Pannie was the "superb" sound system. And this happens not only for 70"s and 80's congs but also for recently recorded and encoded music. What gives? I've played with all the settings (treble bass and the Burmester individual settings) but to no avail.

Anyone else experience this problem?

Sam