Hi, wondering about replacing my sub, at the moment I have an Elac cinema 1 Av set-up running through a Denon 1906 Amp. At the moment the system sounds great with music and movies but I feel the sub needs a little more clarity. Its between two subs, the Wharfedale Sw150 or Bkxls200. My question is, will either of these subs suit the small sats well? Will I notice a more clearer and tighter bass sound? Any help or advice would be appreciated.