SPB: What type of amps do you use and how did you choose the combo?
Nathan: I use a Sovtek Mig60 and a Music Man HD130. This combo was chosen because the Mig60 sounds huge and boomy and Music Man HD130 delivers crystal clear clarity. The idea is that they make up for each other's deficits. The Mig60 is more muddy and isn't as clear and the HD130 is more piercing and doesn't sound very large. Between the two the sound is massive but also delivers sparkling clarity.
Steve: I use a Sovtek Mig50. It's modded to have both channels in series and had a master volume put in. I use it because a) it takes drive/distortion pedals really well (for Moonshield I use an Abominable Electronics Hellmouth with the God City HM2 mod) b) it's light so load in/out is easy and c) having 2 Sovteks on stage looks cool for the gear nerds.
Mike: Me? I just play Steve's sweet gear!
[Steve note: Ampeg SVT-2 pro as it sounds aggressive and meaty yet modern and goes well with super attacky guitars.]