The McIntosh MC 611s will drive anything. I have a pair driving the challenging load that a KEF Ref1 Meta presents.
Also, the Focals can be a little bright sounding, and the Macs will warm them up a bit and make them sing. If you like bass/mid-bass, you can not do finer than Macs. However, if you enjoy an analytical presentation, you will need to look elsewhere.
Lastly, I have always applied the tenets of what "gear heads" have discovered. There is no replacement for displacement! I owned a very good SET amp and now own some "big boys." I'm never going back.