Well the saga continues

I finally saved the little extra needed to pick up a pair of the M22's and will be dropping an order asap. My question is this, with a modest set up of the M22's backed by an EP125 sub need a center channel? I was considering buying one (probably a VP100) somewhere down the line but in retrospect I'm not sure if it's really needed. I have a Paradigm cc and have not been overly impressed with it and truth be told I'm much more of a "music guy" than a "movie" guy. I'm just not sure a small room (14'x14') would be the right place for it.

Will the two speaker set up give me that "phantom channel" I keep hearing about or would the center be beneficial when listening to music? As usual I'm confused!