Any users working with the atc 20asl pro mkII for 5.1 as well as mains? These are my main choice right now. I'll have a professionally built room with bass management, all that great stuff.

I've gone away from large speakers and enjoy mixing on smaller speakers that aren't so room reactive. I've used so many different speakers -- and I'm not looking for opinions on other brands as much as I'd like feedback on the new atc 20s.

Was also curious about break in time, stereo imaging (I've read the specs). How the bass roll off sounds. I really like that they are a sealed cabinet.

I'm still considering the 25's but they may have too much influence in the bass range, are ported and don't have the new SL spec tweeter.
Thanks slutz!

PS - I'm selling my barefoot mm27 gen2s in classifieds. See link below: