Beautiful system! I found the same with my purchase of a Benz Ruby Z, but I was prepared for it because I previously had a Benz Ruby 3.
I've long been considering a VAC Phi 300 integrated to replace my Plinius 9200. I discovered I love tubes when I purchased an Art Audio Vinyl One phono amp several years ago. And the tube rolling has been fun.
Regarding power: I too added dedicated home run lines and it made a big improvement. Over the last few years, power cables have been my biggest education. I started with Shunyata Diamondbacks, then Taipan Helix, then Python Helix, then Black Mambas and Python Helix CX. Your equipment will really shine with the right power cables. Be aware that most of them require significant burn-in time (e.g., 100+ hours).
