DeHavilland Mercury Pre-amp Owners

What amps are you using with these wonderful pre-amp?
I am using an Edge NL 12.1 amp, running to my Usher Audio BE20 speakers. The combination is fantastic. I had a Hovland HP100 previously, no slouch ....but the Mercury II is really something special.
I use the GamuT Mk.3 amp with my Mercury which is extremely natural and emotionally satisfying with no fatigue. I have had the combination for 2 years.