Can a Pass Labs XA160.5 Drive a Set Of Thiel CS7.2

Yes it is but then you will have answered your question for yourself.... Or perhaps talk to him and see what direction he steers you in .... I have also found Kent English from Pass to be an excellent source of information as well...

Does anyone know what the XA160's actually put out at full Class A/B power? If it's anything like the XA30.5, it will likely be much more than the 160 Class A watts.

What don't you like about the X600s? Do they have enough drive but they miss some Class A refinement/nuance and tonal richness? IOW, are they a bit dry or thin. If so, then I think this is what the X600.5 will improve upon.

I agree with the others who suggest you start by contacting Mark or Kent.

How loud do you listen to music? 86 db efficient speakers... Biamp your system, keep the X600's for the woofers and the XA160.5 for pure class A only in the mid and highs.

I was surprised about the power and control of the XA100.5 which I own for 2 years. I know many amps of more than 300 watts p/channel who does not have this drive. So I guess the 160.5 will have more than enough drive. X600.5 could be a nive match as well. I am thinking about to buy these this year as well.

I've been listening to Thiel speakers of every level since 1994. The two things I've learned is that you MUST stick with the highest quality gear up front and that they always improve with more power. Anything less than 400 wpc is silly for the 7.2's if you want them to sound like the world-class speakers that they are. Room size is irrelevant. They eat watts for breakfast.