last night i was just listening to music (at normal levels) on my logitech z-560's and all of a sudden i heard this REALLY loud but short squeal (only about .5 secs). completely scared the hell out of me... then i noticed my right rear channel wasnt working.... i checked the speaker and it still works, so i checked the jack on the back of the sub with a multimeter and its completely dead:disgust::| now i gotta spend the $30+ shipping it back to CA to get it replaced... im gonna be in serious withdrawl...:|