Chris Mac Gregor
This is not an ordinary pedal Wah Wah, it was based on a Moog-type lowpass filter with a wide range, making it suitable to both guitars and bass, as well as all other instruments. In addition to the filter it also generates synth sounds.
- Gain: reinforces the effect and the fatness of the filter
- Emphasis: changes the depth (resonance) of the effect, up to self-oscillation
- Cutoff: sets the frequency range controlled by the foot pedal.