gordo, i have the epic 60 system. room measures approx 16x22, w/cathedral ceiling. m60's are on either side of ent. center, about 3 feet on either side. my sub is about 10 ft away from ent center. sounds great; my wife enjoys loud music too. our only problem is that the cd player will skip sometimes when it's loud and song is bass laden. go for it and crank it up!
dan