Aerial Acoustics 7T's

[llcancado]

I have asked on another post, but here it goes again:
The 7Ts are at the top of my list to upgrade my current speakers. My electronics are Simaudio 650D CD/DAC, McIntosh C2300/MC402.

Would appreciate any comments on how does the 7T would work with the above equipment. I am looking at improving the top end air, midrange openness and clarity / detail resolution, which are important characteristics to me.

On a 4.2m x 6m x 3m room with the 7Ts, would I miss a subwoofer?

The other speakers on my list are: ML Summit X, Wilson Sophia and B&W802D. Any one with previous experience with these speakers would comment on how they stack as compared to the 7Ts?