"On Mark Trottier's board is a Maxon Compressor, Source Audio Soundblox Tri-Mod Wah, EBS Octa-Bass, Maxon Graphic Equalizer, TC Electronic PolyTune, Boss DD-20 Giga Delay with DMB Tap That for Tap Tempo, Line 5 M5, and Electro-Harmonix Bass Big Muff Pi. "