"Best" amp/pre-amp for Joseph Audio Rm7 Sig MkII

Just bought these speakers (new)and am looking to upgrade the electonics Probably want to stay with solid state and could stretch to about $3500. Either separates or integrated. Considering a Plinius 9100 or 9200. Any help would be greatly appreciated, Thanks
What amplifiers has Jeff Joseph shown with? His rooms at CES and other trade shows are consistently praised as being among the best-sounding, and that doesn't happen without good system synergy. Just a thought.

I've seen his room in the past using VTL electronics.
How bout Manley Stingray? Manley/Joseph always is paired together.
I run a Simaudio I5 with the first edition of these monitors (RM7 sigs). Work very well together.