JB uses two amps, mids from one, and bass and treble from the other. It gives him that distorted tone with the feeling of headroom. He still sounds like himself through a simple combo amp though. Just need enough gain to turn down the guitar volume, roll off the treble and it still sings.
Two amp blocks would get you there easy. But since the AX8 doesn’t do two I’d start with a jubilee. And some serious chops.
