The Asabi Overdrive/Distortion pedal features a new technology developed by Jackson Audio which is the creation of replaceable distortion modules so users can swap and completely change the distortion circuit in the Asabi without having to buy a completely new pedal! These are not software updates that load a different preset, they are completely analog circuit boards that contain all the opamps, transistors, diodes, resistors and capacitors that make up a distortion pedal! The Large Mouse module is based on the legendary ProCo RAT and delivers all the snarl and spit of the original with features you've never seen before! Coupled with the active EQ, 4x clipping options and our innovative Gain Cycle feature found in the Asabi, you've never heard a Rat like this before! To make the Large Mouse even more faithful to the original, we procured the mythical LM308 chip that is used in the most sought after vintage units!