I know this is a very very old thread but I thought I would just comment in case someone else is curious, Rob already cleared up that they use a lot of amps but David Bendeth said the Naylor amp gets a lot of use by the BB guys, and another note, all the heads in his studio are customized to his liking so if you were to buy one it wouldn't sound exactly the same. I have pictures of the studio, and the amps he owns are Soldan Slo-100, Carr (can't tell the exact amp from the picture), Badcat Lynx 50 (really really nice tone, a module version of this would be amazing), Naylor (can't tell the amp model from the picture, a 6505+, Krank Krankenstein (I believe its the Krankenstein, a custom Wizard head, Marshall JCM 2000 Super Lead, and a Bogner Ecstasy. Also they use all DR Strings Ben uses 14-70 and I believe Aaron is 11-65 or 12-65 I can't remember exactly. As for guitars they used an Agile Intrepid 8 String on some parts, a PRS custom Baritone, Music Man Axis SS, a Music Man Baritone, Baritone Les Paul, Epiphone Les Paul, G&L Telecaster, Fender Telecaster, and a Washburn Idol. All these guitars were hotrodded (every stock part was replaced with even higher quality components). The MTS Modules they used were the stock Randall Marshall mods (atleast on Phobia, not sure about Dear Agony). Live Aaron used the stock XTC module with the gain at about 4:30, the bass and treble and 1:00, Mids at 9:00 o clock and the volume at 12:00. Density and Presence are 11 and 12 o clock respectively. On Ben's Rig live he uses the stock Randall Recto module, the gain is at 2:00-3:00(he lowered it to 2:00 on their last tour) the Bass and Treble are at 3:00 and the Mids are at 8:00 o clock (almost completely off). The Density and Presence are 2:00 and 12:00 respectively. They also use the stock Blackface modules for their live clean sounds. Aaron (12,3,1,2,12) Ben (12:30,2,11,5,4:30) All settings in O clock (Gain, Bass, Middle, Treble, Volume). Another note is the Bright switches are engaged on all their modules. And neither of the amps are cranked, they are at about 10:00 to 11:00 o clock master volume. I hope this helps people who want to know about their tone!