The four modes of operation are completely new for the Red Dirt Mini. The pedal’s base-line tone is configured by taking the bottom plate off and adjusting the DIP switches. These switches allow you to change the clipping diodes which give you either a more compressed sound, or give you a more open tube-amp like sound and variations in between. The different overdrive styles are: Distortion, Overdrive, Crunch, and Amp. Going from the high gain Distortion Mode where you have 2 to 3 times screamer gain, they give you progressively cleaner, more open and bolder sounds. The Red Dirt Mini is huge on tone and flexibility.
Keeley Red Dirt Overdrive