On your specific Amp question, if tubes are acceptable I’d strongly recommend a CJ Stereo Art150. I’ve been using one for the past year with my Wilson Sasha DAW’s. Beautiful, full range amp and a great paring. This was a major upgrade from CJ Premier 12 monoblocks for me.
I’ve heard Wilsons with tubes and SS (A-B testing) and tubes win hands down IMHO. No tubey haze here either. This amp is clear, full, detailed.
It was nice going to a single box from monoblocks for space management. And finally, put it on a Symposium Ultra platform if you do get one to get the best sound from it.
Good luck!