I have heard some ushers with simaudio integrateds and wasn't real keen on it. I ended up with a pair of tannoy revolution signature dc6 monitors, my room is roughly the same size as yours and my speakers are in roughly the same place as yours will be. I have a Cambridge 650A with creek cdp and mostly xlo cables and I think it sounds great for the money, but I am looking to upgrade my amplification soon. I think they image well, the bass is unbelievably clean and deep for a standmount, and a midrange that is sweet.. Of course it's down to personal preference but I recommend auditioning the tannoys, I love them