Hey, I added a cambridge soundworks basscube 10S to my HT a few months ago. Occasionally, when watching television a hear a pop from the sub. It isn't very loud at all, but nonetheless, I wanted to make sure it was ok. It never happens when I watch a DD dvd, dts dvd, or a DD broadcast through my digital cable. I think it happens when I am watching the analog channels that are only in stereo. Does anybody have any experience with this, is it anything to be worried about?