Info preampli for Jeff Rowland M8T

Hi, I would like to know if you have had experience with the final jeff rowland model 8T, this finale I like very much, before I had the pass xa 160.5 mono but i am now very happy about the Jeff M8T, so which preamps do you get the best synergy ??? I currently have a pre gryphon Pandora, thank you for your advice ,,, Unfortunately what I'm looking for Ampli power is not cheap (Gryphon Antileon Signature)
regards
Gustav