I've been hearing about these new Logitech Z-560 computer speakers lately. Alot of rumors claim that they are more powerful than the Klipsch Pro Media 4:1 system. Say it ain't so!!! If anyone can give me some hard evidence as to why this would be false, it would be much appreciated. My friend is trying to decide whether or not to purchase the Logitech or Klipsch sets. And so far I have yet to convince him of the awesome power of Klipsch. Thanks in advance.