Apart from the "no sound" part, it might be that you're clipping the input... does the Input LED ever turns to red when you play?
OTOH, "no sound"...
Is the Profiler still sounding good w\o the pedal in front of it?
No clipping at all,sure it sounds good without the pedal so that is how it will be.the od pedals in the KPA are not really bad sounding at all.The green od is killer and is really similar to my Maxon od808x.Thanks to all who responded.Much appreciated