My view of the M22s played without a sub is similar to Jason's(Jake). With room reinforcement I get very strong response down to about 60Hz, a little weaker at 50Hz and significantly weaker, although still relatively usable for music, at 40Hz. This is adequate and very satisfying for most music(excluding pipe organ, etc.)and I commonly used it without the sub which I used with another setup. Now that I have the EP500 it's probably going to be in a permanent combo with my M22s(among other things it's too heavy to carry around as I can do with my other, much less capable sub), but as was said, the M22s are quite good in the bass area for most music without a sub.