I just a picked up a Wampler Pinnacle, the 5 knob version with bass,mods,treble,gain,volume. It sounds really good but I find that I have to have the volume on the Pinnacle just about cranked to come close to matching the volume of my amp when the pedal is not engaged. Makes me wonder if something's wrong with the pedal. I was using it with a 9v power supply if that makes any difference. Any suggestions?