I own Coincidents myself, and listen in the nearfield. I also used to have them in a fairly small room (13' X 15'). One of the biggest improvements I've made was putting them into a larger (17' X 25') room.
While I like most of their speakers, they really need a bit of room to breathe. Not that they overload the room in the lows so much as their height and sonic nature makes them a bit overly forward in such a room. I was able to achieve a bit of improvement by making long fiber wool in burlap room treatment like the Michael Greene RoomTunes, but I suggest also trying a smaller, more polite loudspeaker. I would also investigate a backloaded horn (Lowther, Fostex, etc.) loudspeaker.
The rest of your system sounds quite good, and I probably would stand pat that way for a while.