my only complaint with my EP500 sub is the lack of a highpassed crossover output (or at least left and right inputs). I wanted to pair this sub with my 2 channel setup, and I was forced to use a receiver as my pre-amp just to accomodate the EP500 in my music setup.
but for movies, it's very very good, it goes low and loud! (f3 of 18hz in my 2600 cu.ft. room), this was my second subwoofer, and I can tell you that the extra 5hz extension this sub gave me started to rattle lights in the ceiling.
for reference, I have a Velodyne DLS-5000R, Velodyne DD18 and four SVS PB13 ultras on order
