Like someone posted above, they were Framus guys. When I saw them live, that had awesome tone. Framus Cobra heads and Framus Dragon cabs at that time. The Dragon cabs have V30's, so the Randall XL's seem fitting.
Now, they are using VHT Deliverance heads I believe, and VHT cabs. I think Buzz still uses a Cobra as a backup, but I think Ken's backup is a Voodoo Amps CP-100...Or, maybe it's vice versa.
Those guys change setups a lot it seems, as do a lot of modern metal bands these days.