Like bridgman, I also went from M2i to M60Ti. I can only assume that this is similar to the jump that you get from M22Ti to M60Ti.
Although the M2s had a lot of the good characteristics of the M60s, I just felt that the M60s were significantly better. With the M60s, I didn't need a sub-woofer for 2 channel listening. This made it sound a bit more uniform to me, as I always had some slight dip (about 5 dB C) at the crossover point. The M60s also can take a lot of power. They really handle almost anything you are willing to give them without breaking a sweat. I wouldn't be able to say the same thing for the M2s.
After hearing my M60s, I would definitely NOT want to go back to a sub-woofer / satellite system, even if the satellites are as good as the M22s.
