BEST AMPS FOR WILSON SASHA

Really, it will still be a matter of You’re own discretion. There are trade offs both ways. There is no such thing as perfect audio, Or, a prefect sound system, perfect software, or, for that matter perfect live performances. What are you after, in amassing a system? What are you’re objectives? Sometimes, the more complicated, sophisticated things are the absolute worse. You are the final arbiter, as to what sounds good to you! Not a thousand folks, who are running through equipment at the drop of a hat, and their opinions, may serve to confuse, or complicate things even more. My opinion.....Do some listening to a variety of music, with both the Pass, and the Cary, come to your Own conclusions....and don’t look back. 

Looks like a wide variety of amplifiers being used with Sashas, with ARC, Lamm and Pass leading the pack:

https://systems.audiogon.com/systems?utf8=%E2%9C%93&q=sasha

lamm 2.2 hybrid amplifier is other option

An update, I bought a cary 211fe amplifiers, the combination with the Wilson Sasha 1 is incredible , the sound is fantastic, very detailed and natural with a lot of resolution and magic. Cary 211faith+Wilson Sasha 1 approved

Congratulations!
Early in this thread much caution was expressed toward use of the Cary 211 push pull tube amplifier and for very legitimate reasons. Georgelofi and Almarg rightly noted the Sasha’s specifications and difficult speaker load characteristics. Although I cited the Stereophile review by Art Dudley who said that the Sasha was superb with the 25 watt tubed Shindo amplifier, there still was ample reason to be skeptical about choosing the Cary. Particularly knowing that it is a no NFB design amplifier to boot.

On paper judging the available specifications you’d think that the Cary to be a risky option with a good chance of a poor sonic outcome. Once again nothing beats actually listening to reach a verdict regarding the suitability of an audio product. One could argue that perhaps the Pass amplifier would have been equally good or even better. Moot point at this juncture, the Cary and Wilson pairing  is "incredible " in your opinion and that’s the bottom line. I’m very happy for your fabulous results . I suspect that this combo of amplifier and speakers will keep you pleased for many years. 
Charles,