It will drive the B&W's effortlessly imo. I auditioned the RA01 the same time I auditioned the Arcam A75+ using 602's for comparison (which was what I had at the time). Both amps had no probs just that I prefered the Arcam sound. You can find some good deals on the A75+ at the moment too as it's recently been replaced by the A80
I think the only difference between the ra01 and ra02 is that the 02 has a remote control- hardly worth £100 more imo.