The people over at ESS were kind enough to mail me the specs for the ESS AMT3's which I have added to my web site . The quality isn't very good, but you can make out most of the info.

I have been using the speakers set to small, grudgingly, hey I'm a guy we don't do small well. Anyway, it seems to sound better than before, and the Blue Men didn't seem to have any negitive feedback on the change. Movies that had the LFE didn't change much that I can tell, but the HDTV stuff and CD's did benefit from the change.