Neat! Hey Andy, that's the first time I've heard a Krank Revolution sound like that. It seems when you turn up the midrange on those amps though, they get a little nasty sounding. When you scoop it out like you did, they sound like a weaker TSL. Maybe it's just the mp3 though....
Me personally, I much prefer the Laney GH series heads for that beefy thrash crunch sound. They have this certain frequency response that seems to mute all those gross sounding lower mids while still remaining pretty thick sounding.
Andy, have you ever got to try out any of those modded-marshall inspired designs by Scott Splawn, Doug Roccaforte, or Trace Allen? I had a Voodoo Witchdoctor head for a while and it was quite possibly one of the best metal amps I've ever played through.