Power amp for focus audio master 2.5

I'm searching a power amp for my focus audio master 2.5.
my preamp is a goldmund sr8+an orpheus one dac and my amp actually is a goldmund telos150.This amp is almost perfect but with a little lack of power.
have you any suggestion for 5000$ budjet.
Thank you
You seem to like the Telos a lot,why not move up to a more powerful model in that line?Just a thought.
Because the price is too much,sorry
I've Accustic Arts AMP II to sold if you are interested , contact me ...
Gryphon Pls ! sound very expensive