I had my sub choice narrowed down to those two also, the A7s-450 and the Empire. I decided to go with Empire and I couldn't be happier. I'm sure the ED would have been a good choice also, but with all of the hype and positive feedback on AVS recently about the Empire I decided to go with Epik. The fact that it has two 15" drivers compared to one 18" also seemed to be a plus. Granted I have nothing to compare it to really as it's my first sub, but after I set it up correctly it just sounds amazing for both music and movies.
Last edited by Crimson Wrath; 09/23/10 08:51 AM.