The Mk3 Driver-Andy Timmons Full Range Overdrive is an overdrive workstation that allows you to orchestrate everything from a clean boost to a treble supercharger, a chimey tube-amp overdrive to a square-wave, germanium fuzz generator and more. The Mk3 Driver combines a three-control blues driver circuit with two switches for the voicing of Drive and Tone characteristics. Robert and Andy developed these switches to give players a broad range of drive tones. The Drive toggle engages two germanium diodes for a smoother, slightly compressed drive. Switch to Andy’s clipping style for a brighter and more articulate attack. Every part of the circuit has been optimized for tone and the demanding needs of a recording and touring artist such as Andy Timmons. Simply adding the Mk3 Driver to your pedalboard will make your rig sound better. This professional grade overdrive can be switched between true-bypass and buffered bypass at any time.