This is the go-to overdrive pedal for Jason the Foulds Guitars boss; we like to think he knows what he's talking about...

Just like Jason, this pedal has a few tricks up its sleeve. Besides the typical Level, Tone and Drive knobs which obviously control the volume of the signal, the tone and the amount of overdrive, Carl Martin has smartly added a Regular/Fat switch... not so typical.

In Regular mode, the drive is crisp and clear, suitable for anything that calls for old-school drive, switch over to Fat and the drive gets thicker with a lot more gain, much more modern.
The pedal can be powered by a regulated power supply like the Carl Martin ProPower V2.