Sorry, I should have mentioned. The room is tiled, I listen to music/movies/games in equal proportions. I am not impressed by boom, and bigger doesn't mean better. Nor does more expensive. I saw the 12d sale at newegg, but I am not sure how well that will perform given my requirements. I prefer the high quality crisp clean sounds. Keep me under 800 and I will be your friend.
The problem with my energy sws-8 is that is is really muddy. I never noticed how muddy until I got my MA setup going. It was part of my cool take 5 system. It is also very boomy without much definition except boom. I really want a tighter crisper warmer sub. It annoys me that I can hear the sound of a single string being plucked or a the sound of a finger sliding ever so slightly during the switch between chords on a guitar in the middle chorus of other sounds, but anything that requires the bass, is just a big pile of poo with little definition.
Thanks for the list. At the moment, I am leaning towards either the Rythmik F12 or the SVS SB12. I definately seem to prefer the sound profile of sealed enclosures.