I just received my dynamic overdrive in the mail. This thing is unbeleiveable. Anyone whos seen my pedalboard knows im pretty serious, I held out on the Landgraff DO why??!?!?! I couldn't tell you. I have 3 amps and this may replace 2 of them! I bought this used and have no idea what the knobs are supposed to be labelled or what they do but it sounds great! haha Anyone else experience this with this pedal? I think this will save me money!