I have been happy with my M2ti's, mated with a Hsu VTF-3 subwoofer (Many Thanks to Alan and others here for their valuable setup advices!).

Recently, I read high praises for Axiom's new M2i. Not many reviews were found for the "old" M2ti.

I understand that the new M2i has a bigger 1" tweeter and lower crossover frequency (2700Hz), while the old M2ti had 1" tweeter with 1/2' voice coil and a crossover freq. of 4700Hz.

But is there a significant, AUDIBLE improvement?
Is it worthwhile to upgrade? (assuming the old M2ti may be sold or given as a gift to my sister).