"Duesenberg also brought three new pedals to Musikmesse. The Rev (top left) is an analog-voiced reverb with size, hi-cut, and mix knobs, the Channel 2 (bottom left) is a transparent overdrive with gain, presence, and master knobs in addition to a 3-position deep switch, and the Treble B is a booster with boost and range knobs, the latter of which tunes the EQ curve of the boost."