Hey, my first post here, hope it's not considered bad form to drag up an old post like this, but I have the same question, with some different details.
I'm looking at the same amp, and the same 2 speakers, but my main concern is matching the speakers to the room. My space here is about 2000 ft^3, and seriously live...hardwood floor, plaster walls and ceiling, large windows at the rear, and a glass fronted bookshelf built in on one wall. Based on the comments in here, I'm thinking the "laid back" sound of the M50s might be more appropriate? (and maybe I should pick up an area rug and some curtains
)
