I think ProAc uses Audio Research in speaker development/voicing. That should be a place to start.
I can't recommend anything because I have no idea what your budget, room size, preferences, etc. are. Just threw out the ARC recommendation due to ProAc's use of them.
I can't recommend anything because I have no idea what your budget, room size, preferences, etc. are. Just threw out the ARC recommendation due to ProAc's use of them.