After my recent post on Subwoofers at low SPLs I have decided to take the plunge and buy a 'woofer. I want something fairly small and with a wood finish. My system is Denon 3910/3805 into Linn Ninkas, AV5120 & Uniks. Would the BK XLS200 be a worthwhile purchase? My room is around 14'6" X 12'6". If not the BKs then what would you recommend? I'm prepared to spend up to around £700, but don't want anything much bigger than a 16" cube.