I gotta disagree big time with all due respect of course. I may not have had as many as you, but did AB 3 different Rev C’s with the same exact tubes to be fair as well as AB it with a Rev D and 2 Rev F Triples and have tried 4 Rev C’s total. They don’t sound anything like any modded Marshall I’ve had when AB’ed (including lots of Cameron’s among others). They sound basically like other Recto’s with more teeth/aggression and clarity. I could on any of the Rev C’s I’ve played dime the presence and treble (not that I prefer that) and it’s still a much darker and fatter, low mid dominant sound when AB’ed with the Marshall 2203’s I’ve had, SLO’s, Wizard’s, Naylor’s and a few others. Those amps are way brighter with much higher sitting mids, no contest. They’re still dark, fat amps that are only bright relative to other Recto’s IME. And I’m a huge recto fan fwiw that grew up in the ‘90’s. I love my Marshall’s too, but the Rev C (and other Recto’s) is top 3 for my taste, while my favorite Marshall’s (modded or stock) would fall just a little outside that (still love them too)