MXR M107 Phase 100 With 10 stages of programmable phase shifting, the MXR M-107 Phase 100 guitar effects pedal features adjustable intensity for sweep width and notch depth Controls provide for regeneration in 2nd and 4th position This big brother of the Phase 90 offers a broader range of sounds in a larger unit Along with the speed control there is a four-position rotary switch that selects four different intensities, defined as preset waveform patterns Between the intensity and speed settings, you'll find quite a supply of excellent sounds tucked away in this orange casing