I just bought one of these sound systems and was wondering about the satellites. I own a Klipsch Promedia 5.1 Ultra system that has a blown Sub and was wondering should I used the Klipsch Sats with the Z-5500 instead of the ones that came with it? The Klipsch Sats have seperate tweeters it seems while the Logitech are only one piece with no tweeter. Anyone know what I should do?