Axiom Home Page Forums General Discussion Home Theater M 22's or M60s?

My room size is 15 feet by 16 feet with 8 feet ceilings. I currently have the Polk Audio RT800 floorstanders as of 6 years now and ready to upgrade. I have my choices between the Axioms M22's and M60s since I like detailed sound. I'm not sure if I should get M22s or M60 floorstanders. I'm also using a sub along with my polk floorstanders now and I'm just not sure if I'm gonna be losing any midbass going from floorstander to bookshelfs? What you think?