duo's vs trios

I have a 20 x 25 room a Burmester 956 200w amp, nbs cables, meridian 506.20 cd and a z sustem rdp. Will the trios be confined in that size room. What trade off's will I get between the two. I like lots of good music, not much classical mainly rock, alternative female rock, live cd's and listen to realistic sound levels. (nice way of saying loud) Played in rock bands in college and love the feel of the music. I love my electrostats but they run out of juice at hi end. Nothing else I have bought have replaced my electrostats only the revel salon was ever considered. I have a pair of german physiks borderland speakers which are very fine speakers and play very loud but I still love my electrostats. Should I belive in what some say, they dont listen to my music in their reviews. and do I need to replace my amp with flea 50W tube amp. I love my burmester also and it sounds too good to replace and looks cool to. All help appreciated