I just ordered the VFE RED BOOSTER which is an EP-3 style preamp. https://m.facebook.com/VFEpedals#!/V...pe=1&source=42 Controls PRE = pre-gain. Turn this control up to add mild amounts of harmonic drive. POST = post-gain. This sets the output volume of the pedal. CUT = treble cut. Pull it back for a warm boost, turn it clockwise for a transparent boost. What is your of the pedal?