I just bought an SFT, and when the pedal is engaged, a SERIOUS ammount of low end is lost when the bass knob is at noon treble at noon. i tried diffent gain settings, different volume settings but the only acceptable sound is when I have the bass knob cranked all the way up and even then theres more low cut than I would like. I tried different basses, I tried using a battery, and I used my one spot. both made no difference. could anyone help me out here? do I have a defective unit or am I just doing something wrong? thanks!