Yes, I am running CM8s for my mains, a CM center, a Martin Logan 700W sub, and some Bose rears. I use it primarily for video games and movies, occasional music and I like it at nicely loud volumes when the wife isn't home, but not ear-splitting. A few years ago I purchased what I think was an RX-V779 and was pretty underwhelmed at the output versus my current, much older receiver. It just felt anemic by comparison.
Given that the RX-A1050 is priced pretty reasonably right now as people make room for 1060s with very little new features, I figured going for that and an amp might be a better package than spending a similar combined amount on a receiver with a bigger internal amp like the 2050/60. As I said, I don't have any experience pairing an external amp or using more modern receivers outside of my experience a few years ago with the RXV that didn't have the discrete channel power of my current receiver.