@ct0517 - thanks for the response. With the subs in place are you still running the Quads full range, the using the sub fior 60 Hz and under, or are the Quads completely cutoff at 60 Hz?
The 57's are full out on the RM10 and in parallel to the subs. The preamp I am using in that room has two direct outputs. One output set going to the L and R 57, the other set going to the L & R sub. The subs are on each side of the listening couch, the opposite room side to the 57's. The Quads are seven feet from the front wall. So they are about a third of the way into the room.
I realize that the way I have set up the Quads (see virtual system pics) and the subs is, well, unorthodox. But that is just one of the aspects of a dedicated room, that allows you to manipulate speaker placement, and affect the way the speaker output and the room gel. The hell with aesthetics. Hey, anyone with Quad 57's isn't into aesthetics anyway - 8^0.
Room A is my main room, it pressurizes easily due to its shape and the speakers used in there; but Room B is a better room for entertaining due to its size. It's been a lot of fun when people visit and if any are interested in audio, watching them get a grasp that the Quad 57 is actually a speaker. Equally entertaining is when I tell them there are two subs in the room and to tell me where they are as music with a lot of bass plays. They start looking over at the 57's across the room, looking in the corners nearby. When I tell them they are on each side of the couch they are sitting on, one right next to them on the left - they are in disbelief.