I own and use a pair of Coherent 8s paired with my 45 monoblocks. These are great speakers, comparable and different (not better or worse) than, say, Omega speakers. I am currently running a side-by-side comparison with both speakers and am finding that some amps sound better on one vs. the other.
My Coherent 8s were custom made (not for me) and the cabinets are a little smaller than standard. Great tone and presentation. I use a pair of subs to fill in the music below 60 Hz.