Dual Modulation Intensive Care Audio's "Recovery Phase" is a dual modulation unit capable of bi-phase and phase shift/tremolo effects. Lfo 1: An 8 position rotary switch allows you to select 1 of 8 available LFO waveforms. From left to right these are; Random Slopes, Random Steps, Sweep, Sine, Triangle, Square, Ramp Down, Ramp Up. This LFO is the primary LFO used in the phase shifting. Holding the BYPASS switch for 3 seconds gives access to a hidden mode where LFO 1 controls LFO 2. Lfo 2:An 8 position rotary switch allows you to select 1 of 8 available LFO waveforms which control either secondary phase shifting or a tremolo. Freq: Sets the frequency (speed) of LFO 1. Depth: Sets the depth of LFO 1. Depth 2: Sets the depth of LFO 2 Freq 2: Sets the frequency (speed) of LFO 2. Trem/Phase Switch: LFO 2 controls either secondary phase circuit tremolo circuit. Lfo 2/Off Switch: When in ‘PHASE’ mode this switch either turns on or off LFO 2. When in ‘TREM’ mode this switch selects between LFO 2 controlling tremolo only or tremolo and secondary phase shifting.