Axiom uses Bryston amps in their test room.
See thread here.
http://www.axiomaudio.com/boards/ubbthreads.php/topics/34543/2
That being said, there are many good quality amps out there for decent prices. I personally own an Anthem MCA 30 which powers our Tannoy D700s.

"Those who preach the myths of audio are ignorant of truth."