A study of the rotary block in the Axe-Fx II XL+ running Quantum 1.06 firmware.
Signal chain: PRS Hollowbody -> AFIIXL+ -> GarageBand via USB
1. Clean, both pickups
2. Dirty, neck pickup
3. Overdriven, bridge pickup (with a change in drive using volume knob on guitar)
Patch: http://axechange.fractalaudio.com/detail.php?preset=3975