I had a PrimaLuna HP w/ SonusF Guarneri’s. It was a tad underpowered. Replaced w/ a Rogers HiFi KWM 88 and am very happy. I’d consider massive seperates as the next step up. As EBay takes 12.6% using the phone to the mothership you could negotiate that from the price. It’s a monster of a class A amp.
PS Audio makes great stuff.
Budget? Rest of system? Room? Roon?