A7s and sub 8
Very, very good. Lighting fast, transparent, unhyped, unforgiving. Its in the ribbon tweeter, methinks. Great soundstage (so long as its in the mix, obviously). Acoustics, snares, cymbals of all sorts sound like they're in the room.
If you go for the A7s, which have a modest bass response (they can get down to about 40Hz, room dependant), then they benefit a hell of a lot from the sub. Just takes the load off the little woofers (6.5 inch) adn improves the whole low, low mid and mid. I dont know about the bigger ones, maybe they can handle the lows with greater authority. (That said, the A7s handle low end better than the considerably bigger DM602s)
I havent heard the CSMs, but I recommend the adams wholeheartedly. There are plenty of reviews of the A7s around, and lots of personal testimonys (since they became very popular due to their value for money) - check em out! (I cant find a bad word about em, and have nothing but good to say myself)