If you are wanting to go with Rogue, you should take a hard look at the Cronus Magnum III. I've heard that multiple times with Maggie 20.7's and it was nearly as good as the $50K Audio Research stack that was next to it.
Rogue Sphinx....good match with Merlin TSM?
This upgrade disease is unrelenting once it takes hold. I was first going to upgrade speakers, but after tons of comments, and some serious listening, I decided to upgrade power instead. Do you think the Rogue would be a decent improvement/upgrade from my Heaven 11 Bille amp (original version)? One thing I have to have is a remote, which the Billie does not have.