Pretty simple actually:
Korg DTR-1 (love this thing!)
BOSS GX-700 (Love this thing even harder)
Rackmount 220V power outlet thingy to power the whole thing
Rocktron Velocity 300.
The Rocktron in particular is brilliant. Right now, it's running with one cab in each channel and it's brilliant.
The "Reactance" and "Definition" knobs are amazingly useful for the application I'm using it for, ie. playing in a grindcore band with no bassplayer. The Reactance knob is seriously a godsend, since it somehow boosts the lows to almost absurd levels.
The setting that worked best, was the bottom bass cab turned up to around 6-7 on volume with Reactance on full. This gave a completely silly amount of low end, making a bass player officially obsolete.
Then, the 1982 on top with volume around 3-4 (it's ear height AND stupid loud by nature) with Reactance on 5-ish and Definition on full. Coupled with my Bolt Thrower wannabe patch on the GX-700, this gave a basic sound that can only be likened to something with Titans dickpunching mountains while several nearby planets explode.
Of course, there's not a single tube in this entire setup, at all.
A nice little detail is also the fact that the Rocktron still has two extra speaker outputs, so I can easily hook up two more cabs, totalling up to four cabs. However, given the absolutely absurd firepower these two cabs alone give, I might never have to.