The Leviathan is a powerful tool to diversify your sonic palette. The resonant filter can be set to high pass, band pass, or low pass filtering. Stomp it in for a half-cocked wah or gurgling low-frequency rumble.Then add the LFO for a gentle warble or ramp it up to a howling siren.
The Leviathan also features an expression pedal input. This can be used in the bandpass setting for some classic wah sounds. Or in lowpass for huge bass swells. The EXP pedal also works in conjunction with the LFO, giving a unique effect of focusing the LFO oscillation upon a sweepable frequency range.
Song controls the frequency cutoff point of the filter, turning this gives you a classic filter sweep sound. By adjusting the feed control, the resonance feedback can be used for either a minimal effect all the way to self-oscillation. The LFO section of the Leviathan is routed to the Song (frequency) control. Churn controls the speed, while Wake controls the depth (or intensity) of the LFO.
For full range LFO operation, set the Song in the middle position, setting it to either side will force the LFO within smaller parameters (which may be desirable)