FX101 Grind Rectifying Overdrive Pedal The FX101 Grind Rectifying Overdrive was introduced at Summer NAMM 1996, along with the FX100 Integrated Tube Even Harmonic Overdrive pedalSharing the same circuitboard as the FX100, the FX101 was voiced to emulate modern Mesa/Boogie-esque rectified distortion, and despite its name is really a high-gain distortion pedal rather than an overdrive ,...