which one would you recommend for home theater use in a room 24' x 15' with a Denon 3803 or Pioneer 45 or Sony 4ES receiver. To me the B & W 603's sound very smooth, while the Klipsch sounds, well I don't know how to describe it. I have not heard the Monitor Audio's yet (I hope to this week) and maybe even the Energy series. I read that Klipsch was something like 98 effeciency, where the B & W's & the Monitor were only 90 - 92 effecient. Will that make an audible difference?