I currently have a pair of M60s used in my den. I am about to finish my dedicated home theater in the basement. The size of the basement theater is 24x17x10(with a tray ceiling). I plan on a full 7.1 system and thought of using my m60s as front speakers. Can they handle this size room? How much improvement can I see with the m80s.

I need to move my m60s out of the family room (wife) so I either use them or sell and get the m80s. If I have to sell, any idea where or how?

Thanks!