A phaser is an audio signal processing technique used to filter a signal by creating a series of peaks and troughs in the frequency spectrum. The position of the peaks and troughs is typically modulated so that they vary over time, creating a sweeping effect.
For this purpose, phaser includes a special low frequency oscillator.
Frequency of the LFO.
Sets the amount of FX.
Feedback. Amount of signal re-injected.
Range can be set using the Range Fader or dependents faders as well (from 1Hz to 10000Hz).
Stereo enlargement factor.