Bryston B60 with Totem Arros

I own a Bryston B60, I like the size and price range of used Totem Arros.
This is for a system in a painting studio 18X22 vaulted ceiling and painted wood walls.  I'm off base with this pairing concerned that the B60 has enough power for these 4ohm speakers. This intergrated is rated at 70 wpc. Considering CDP Audiolab, Micromega, Rega, or transport and dac.  Thanks for your interest in this post...

Thank you for your insight and advise.  I listen to acoustic blues, jazz, and classical music at reasonable volume levels.  So this should workout.  Thanks again....

Thank you for your thoughtful input.  It all helps, I'll audition these suggestions before committing fully to this set up.... appreciate the time you took to post these responses.