I look forward to more experienced people's responses here, but in the meantime fwiw, the 2060s rank as one of my alltime favorite amps. Though i have not done a shootout, i had used the same system with different amps incl the 2060, and other than my Gryphons, i have not found anything that tempted me much as the mighty 2060. I am fortunate to have heard some remarkably great amps: D'Agostinos monos and stereo, Constellation Centaur, Tidal monos, Ypsilon Ref Monos, Zanden Ref Monos, VTL Siegfrieds, ARC Ref250s, Krell Evo Ones, Naim Statement, Kondo Gaku-Ons, TAD Ref monos,
I am told by a former Boulder dealer (and owner of 2060) that the 2060 is a serious cut above the already mighty 1060. Only your ears will discern if there is a difference that is worth it to you...but boy, having heard those, i put them in a [very] rarified class.