okay I've been looking at the polk RM 6800 and the polk rm7200. I know the 7200 is discontinued but they are both priced close to the same. Can anyone look at the specs and tell me which is better on paper? and if its worth an extra $160 to get the 7200's. Especially the subs...I think one has a side woofer...if there is such a thing. Anyways any people that actually understand what the heck HZ and KHZ and ohms are your help would be appreciated!!!