Ken, wasn't your comparison flawed, shorting bars on the back of the M80s loose or something like that?

In my experience, the M3's are different tonaly than the M22 and M80s. The M80s and M22s have a much cleaner midrange to them. That dip in FR makes voices from the M3s sound to be behind the other sounds rather than in front of or equal to. Now this was all with v2's and my Ti M22's so with v3's, YMMV.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70