One Control Dimension Blue Monger Modulation Guitar Effect Pedal BJF SeriesWelcome, you are looking at a great piece. The One Control Dimension Blue Monger is a new type of modulation effect that blurs the lines between Flanger and Chorus. It produces a watery, three dimensional effect that gives your tone a sense of transparency, rich shimmer, and reverberation. Complexity control adjusts modulation speed and depth with one knob. At counter clockwise position, produce a standard chorus sound. At the most clockwise position,