Wilson WP 7 with Air Tight ATM 211

May I ask why tubes? I know the usual arguments about SS, but in the course of auditioning new electronics for my WP 7s, I auditioned CJ and Ayre MX-Rs. IMO, the MX-Rs were more pleasing by a wide margin and have none of the problems driving these speakers that others have highlighted. I'd give them a serious listen. If you wish to have an element of tubes in your system, do it with a pre amp such as a Nagra PL-L or other fine tube based preamps out there.

Hi Lenny & Welcher
Yes a good valve preamplifier matched with a excellent solid state power amplifier is a very nice blend of both amplifier designs, excellent sonic results can be achieved this way.

Welcher, the Wilson Watt puppy 7 will run with SET amplifiers of higher out put like 845, 211, 833A etc fine.
Usually it is easier and more affordable to use a more powerful Push Pull valve amplifier to get excellent results with the Wison speakers, and as a general statement more dynamic results.
If cost is no object then there is always exceptions of course, like the Lamm ML3, WAVAC HE 833A etc.

+1 on the VAC / WP pairing. i've been running these for a few months now and am extremely impressed.