Both Linn and Epos are a good match with Naim electronics. One of the best systems I've ever heard was the Linn Isobariks (the big ones, not the Sara's) with active Naim amps.
I think Naim used Epos when voicing their earlier amps, or maybe Epos used Naim....can't remember. I owned Epos ES14's and they were an excellent speaker. I think the newer, more expensive line of Epos would be a good match with Naim amps.