The original six-stage phase shifter with variable feedback and vintage vibe! 

The legendary EHX Bad Stone Phase Shifter resurrected! With prices of 1970’s vintage Bad Stones soaring, now is your chance to get a reissue that is faithful to the original circuit design and three-knob control layout, but features up-to-date enhancements for the modern player. The Bad Stone delivers an incredible six stages of phase shifting plus a manual mode that lets the player freeze the phase. Its Rate knob controls the phase shifting speed which goes from a very slow swoosh to a rapid, oscillating warble. Feedback determines the depth of the phase effect and a toggle switch lets the user select Auto or Manual modes.