Flange (FL) A Flanger uses the same principle as a Chorus but uses a shorter delay time and adds regeneration (or repeats) to the modulating delay.This results in an exaggerated up and down sweeping motion to the effect. Amount - The Parameter 1 knob simultaneously adjusts the rate (Speed) and intensity (Depth) of the Effect. Ranges from 1 to 99. Level - The Parameter 2 knob controls the mix level of the Effect. Ranges from to 99. Phaser (PH) A phaser splits the incoming signal, and then changes the phasing of the signal.This signal is then taken in and out of phase and mixed back in with the original signal. As the phasing changes, different frequencies get canceled resulting in a warm sort of twisting sound. Amount - The Parameter 1 knob simultaneously adjusts the rate (Speed) and intensity (Depth) of the Effect. Ranges from 1 to 99. Level - The Parameter 2 knob controls the mix level of the Effect. Ranges from 0 to 99. Tremolo (tr) A Tremolo effect modulates the volume of the signal at an even rate. Amount - The Parameter 1 knob adjusts the rate (Speed) at which the volume modulates. Ranges from 1 to 99. Level - The Parameter 2 knob adjusts the intensity (Depth) of the modulating volume. Ranges from 0 to 99.