I found out from simon, it's a TSR effect insert. This amp really rocks and I think it's a step upward from the Old Flame which I had been using. It really screams with my Ethos too. I'm really psyched. I'm considering adding a PPIMV master volume (trainwreck style)
I think this is the ultimate pedal platform amplifier but unlike most that claim this title, the kingsley sounds incredible without pedals too.