Do I hear an echo?

I think the m60's would give you the most inproved sound as well. I think the 60's would provide enough bass along with the sub you currently have to cover that area for a while. There's just no comparison between my current towers (m80's but I understand the 80's and 60's sound similar) and my old speakers. My .02c.

Denon 5803 Denon 3910 Axiom M80ti's, QS8's VP150, EP500's (7.2)