I have a Sony DB940 amplifier with some borrowed surround speakers at present, but no subwoofer. I am planning to purchase B&W speakers in the near future as follows:- 602 S2 fronts, CC6 S2 centre and 601 S2 rears. The room is 16' x 10'. I have read that the B&W subwoofers aren't brilliant, and that a REL sub is the only one to have! What REL model would best suit my system? I am concerned that they may be a bit over the top in terms of spec and size with my present room size and system, and they are just too expensive! What are the alternatives? Ideally I would like to limit my sub purchase to £300 - £350. Thanks in advance for any advice. Andy P.