That is Dave on guitar and Mick on bass. Dave is the guy that made the DTS SDD3k pedals, and Mick from UF. He's using two paths here, feeding into 2 differnt amps. "DM4 (Tube Driver setting) and Synth Wah (in parallel)." I doubt the Synth wah settings are that imortant to know, you set it depending on the guitar you use. And you get a fuller tone with 2 amps because one part of the sound doesn't go through the filter. I'm sure there are other videos on youtube with some suggested settings