Hey Dave, Mmashak's APL Denon 3910 is a solid state design with MOSFET output, no tubes. I really think that your 3930 should be compared to that one so it is a fair game.
I am sure that there will be many around here to believe that Op Amps can beat tubes so your statement that your Op Amp/Black Gate 3930 "completely cream APL 3910" might actually fly. :-)
Best!
Alex