Blades are great speakers, but they would be wasted in a home theater, at least if that home theater wasn't also used to play lots of music. First of all, the highly reflective finish would not be an asset in a room with a projector system. Second, they would need a serious stand-off distance to sound good, so I hope your room has lots of space in the front. Third, as you say, there is no dedicated center channel in that line of speakers. The closest thing would be the REFERENCE 2c or 4c, and at that point you might as well get the Kef REFERENCE 5 speakers instead of Blades. Blades are intended for two channel listening. A similar alternative would be Monitor Audio PL500 II speakers with its corresponding center speaker. I would also be looking at Funk Audio 8.6 speakers, and the Funk subwoofers will wreck anything from KEF or Monitor.