I actually prefer the look of the M60 with the extra cabinet exposed under the grill. The M80 with the grill going right to the floor looks wrong, for the lack of a better word. It was this look and the reports of the 60s sounding the same as the 80s that made me purchase the 60s to begin with. Even though I ended up with the 80s, I still wish they had the same look as the 60s. I used one of the 60s as a center in an experiment and it sounded awesome, way better than anything I have heard before or since as a center. Hmmmm.......remove the fireplace and install a M60 for a center........I would be a dead man.
