Boss FV 500H and WAH

    Quote from theplayer

    But nothing is said about calibrating an expression pedal. The manual of the pedal also shows nothing about that


    Reference manual page 44:
    Expression Pedals
    An expression pedal works just like a wah or volume pedal, but is made for digital devices. It only needs one cable with a stereo jack, connected to one of the dedicated pedal inputs. If you use a regular expression pedal (e.g. Roland™), please select “Pedal Type 1” with soft knob 1. If you use an expression pedal with reversed polarity (e.g.Yamaha™), please select “Pedal Type 2”. Then press “Calibrate” and perform a full swell on the pedal to calibrate it. You can monitor the changing swell value of the pedal directly under the soft button.

    I guess there's the problem. I seem to have quite another manual than you have. Page 44 is about Switching Performances with a MIDI Foot Controller ! I have a dark green manual Kemper Profiler (The Basics & Profiling Guide - Basisc & Profiling Anleitung) from 2014: so in two languages: English and German. It's rather an description of possibilities than really a manual. In the chapter Back Panel Overview (starting on page 25) there's a 3-line (!) passage about pedals and switches, referring to the back panel overview. That's it.
    I got deep into wiKPA but couldn't find a tutorial about an external expression pedal.
    And now I see I had to look in the Reference manual. Surely I'm to blame for that! I downloaded the PDF and will go from there. Thanks to everyone. ;)

    OK! I got me a good wah all the way from 0 - 16383 (System). Back to the stomp I put the pedal mode in BYPASS & Heel because I want my normal signal back after the solo, pressing the pedal to heel. That doesn't work that way. It leaves me with a wah frequency.