Boasting two tactile knobs and a tone-changing button, the MXR Deep Phase is capable of achieving a wide range of mesmerising phase sounds, from subtle liquid shifting to thick, swirling turbulence. The Speed knob adjusts the effect rate, while the FDBK knob adjusts the intensity and sharpness of the phase peaks. By default, the Deep Phase Pedal runs on 4 phase shifter stages for a smooth effect. The Mode II switch doubles that to 8 stages for twice the number of peaks and a more animated texture.