Featuring mono and stereo modes, a nuanced odd/even vibrato switch and tone/depth controls for finely tuning the EQ and character of the effect, the J. Rockett Mark Sampson Revolver is a powerful overdrive with an expansive roster of tonal options. Built based on the schematics of a stereo amp designed and built by Sampson, this effect provides the perfect clean boost, brightens or darkens your tone with ease, and adds a tasteful edge while retaining the clarity of your guitar's signal.