Vincent SV-800

I heard good things about Vincent, but don't hear much about this unit. I'm designing a sysytem for a friend who demands an integrated, so I thought of this.

That said, it is a little confusing. It will be driving a Magnepan, and it says:

Class AB
8 Ohm: 2 x 100W
4 Ohm: 2 x 160W

Class A
8 Ohm: 2 x 50W

So am I to infer from this that it cannot handle Class A output into 3 or 4 Ohms? For the price my expectations would be ClassA output and it would need to mate well with MMGs or the desktop maggies.