The T1 seems to be rated 10w continuous (digital) which seems like it is right on the edge as I get a bit more than that out of my tx500 in many cases. Maybe it is close enough.
The em2 (which I have and love) says 15w peak. Again, I am guessing I am pushing it with digital. It does not discuss that specifically.
Great suggestions - maybe I am overthinking this. Keep 'em coming.