Crap, I just noticed something with the sub, I'm pretty sure I didn't have this problem before. I'm not sure how to describe it, but there's a distinct sound(kind of a hollow sound, like there's something loose vibrating) coming from the hole in the subwoofer whenever certain strong beats are played. It's more noticeable in some songs. Does anyone else have this? And anyone know how Logitech's RMA policy is? Thanks