Gurus DoppolerInspired by the old yet innovative rotary speaker systems, like the old Maestro Revolver, Leslie, and mostly the Doppolas rotary speaker made by Mr. Gilmour & Mr. Taylor, with the DOPPOLER, we wanted to make a pedal that really reproduce the rotary effect in a physical way, just missing the mechanical parts. in fact, the Doppoler is NOT a rotary simulator but the brain of a system that in his best setting is made of two cabinets, positioned at 180