I've decided to hold out on my speaker purchase for a few months, but i need a good sub. i've been considering the Hsu VTF-2 ($499) but was wondering if there was an SVS in the same price range. i dont want to spend more than $500 at most. would the SVS be powered? is it better than the Hsu? any other brands someone could suggest? i'm going to be listening to music vs. movies about 60/40, and it needs to be kinda small (for a dorm room). TYIA for the help!