One of the things I like about the M3s amd M50s is the ability to go against the flow and do "something completely different"!
I have tried and tried and tried to like the sound of my system(M50 mains and M3 center and surrounds)crossed at 80hz. I always go back to 60. Always!! It just works better in my system in my room with my ears.
The M3s are happy at 60, but the M50s absolutely luv it!
......and ME too!
pre edit: I should say that my system is as it is due to historical events. If I were to waltz on into this web-site today, I would probably go with v2 M60s with "traditional" Axiom center and surrounds.
.....all the complaints I had about the M60 a few years ago seem to have evaporated. They seem to sound even more like the "pleasant" M50s now!!