My current system is a Yammy 620 powering a B&W CC6 centre with aging Mission 760i rears. The fronts are B&W 602 S1 biamped using Arcam Alpha 8 & 8P. I'm thinking of replacing the speakers with a sub/sat 5.1 system but would be loathe to lose the Arcams and just use the Yammy. Is is possible to set up the system so that the sub input could be used as the .1 channel from the Yammy, but still with the Alpha 8 powering the sub in stereo mode? And whilst I'm at it, any recommendations for speakers that'll do the system justice? My budget is as little as poss - £500-600. The room's quite narrow, but bloody long 10x32ft although the listening end of the room is 10x15. I've had a quick listen to the Ruark Vita's and they're gorgeous (maybe a little bright), but £1500 is a tad too much. Any help much appreciated.