MA6200 vs MA6450

I have the MA6200 and was wondering if the MA6450 will sound as good if not better? I'm really wanting those meters.
   I  owned the MA6200 for many years, without any problems. But as I expanded my system,  I needed an amp with more power and changed to separate McIntosh preamps and power amps. As to the MA6450, I have no opinion, as I have never it.