Mcintosh 501 mono's is what I use - they do a great job controlling the Thiels. Transparent, great bottom end and midrange.
Before that I used Classe CA 200 - Mac's were a big step up.
Can't help you with Pass or Krell, haven't heard them.
Before that I used Classe CA 200 - Mac's were a big step up.
Can't help you with Pass or Krell, haven't heard them.