Using the ES P LFO
The ES P features an LFO (low frequency oscillator), which can do either of the following:
Modulate the frequency of the oscillators, resulting in a vibrato.
Modulate the cutoff frequency of the dynamic lowpass filter, resulting in a wah wah effect.
Vib/Wah knob: Turn to the left to set a vibrato; turn to the right to cyclically modulate the filter.
Speed knob: Sets the rate of the vibrato or cutoff frequency modulation.