I bought myself a popcornhour and had to move the SP2 for 20 centimeters, to put the new optical sound cable for my popcornhour.
I had to unplug a lot of other cables and also the cables for the end-amplifier (for the rear speakers and frontspeakers).
If I have no sound coming out of my popcornhour or satelite receiver the rearspeakers sounds like there is a clock ticking.
I changed the cables but it is still here. What can it be? It is only the rearspeakers. The rear speakers are on the same amplifier as the centerspeaker. But the centerspeaker doesn't have that sound. Even on mute this sound is there.