Here's Dev's rig from the BTBAM tour.
1. Furman Power Conditioner for pretty lights and surge protection
2. AxeFX Ultra for tone/effects generation
3. Sennheiser Wireless unit (not used this tour)
4. Radial Direct ProD8 to send direct mix to house
5. GP100 for that "ugly sound" (to be replaced eventually)
6. Behringer EQ for, uh, EQing
7. Art SLA-1 for amplification
8. Mesa 2:90, also for amplification
Not sure why there's two amps in the rack for stage sound, but there it is. Maybe the AxeFX and the GP100 are amped separately?
BTW, I stole this info from Dev's post on the Fractal Audio forum here:
http://www.fractalaudio.com/forum/viewtopic.php?f=19&t=13747 Can't wait for US headlining tour!