BEST AMPS FOR WILSON SASHA

alfs100,
It seems that the question has been answered. On paper the Pass Labs XA 100.8  is the better choice given the documented challenging speaker load impedance characteristics of the Sasha. It has also been acknowledged that actually listening to the amplifiers driving the Sasha is the only way to truly determine which is better sounding.

The OP could prefer the Cary 211 to the Pass once he’s heard both despite the apparent Pass advantage if judged solely on known measurement and specifications and then extrapolating from that information.   What else is there to say? He’ll have to listen to both amplifiers for a definitive answer. What more can a forum provide for a subjective topic?
Charles,

thank you Charles .
 Hoping for other Sasha owners who tried either of OP's 2 amplifier choices to share their experience.  I would imagine a few  Audiogon members have Wilson / Pass Labs combination, and either have not seen this thread or busy at the moment.
Maybe Charles does not have the opportunity to audition these amplifiers with his speakers and relying on opinions.

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