Shawn, your right about the 500. Tonight I watched "Cars" with my 8 yr old. During the part where Frank The Combine comes out to chase down Lightning McQueen and Mater for upsetting his tractors, the room was under great pressure and the hairs on my legs almost stood up. I can't wait to get my 600.
Prior to the 500 I had a 350, it was a very good sub. My basement HT/Recroom is just so large, the 500 does a better job.