I went from M2s to M60s so it's not quite the same thing... but it probably is pretty close. For me, I gained three things :

1. The ability to play music LOUD without pushing the speakers past their limits.

2. The ability to play music without subwoofer, which I still seem to prefer despite many attempts to get the perfect integration between mains and sub.

3. A whole new world of playing some action-type movies with the volume cranked, eg. the helicopter crash scene in Matrix. Again, this is anti-social behaviour not normal listening levels... but it REALLY sounds great and some of my friends keep coming back even to see/hear the same movies again.


M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8