Controls in parentheses () are accessed by holding down the Select button and turning the indicated knob.
Rate: Controls the rate of the low-frequency oscillator (LFO) for the flanger, from glacial to space invaders. Controls the input sensitivity in Dyna mode.
(ALT1): Controls the sweep offset (manual) in Auto mode, the pattern select in Step mode, the envelope speed in Dyna mode, or the delay time in Echo mode.
Depth: Controls the maximum LFO sweep in Auto, Step, and Echo modes. In Dynamic mode, this controls whether the flanger sweeps down (less than noon) or up (greater than noon) based on the input signal.
(ALT2): Controls the delay repeats in Echo mode
Mix: Controls the blend between the dry and flanged signal. Equal mix is at 12 o'clock.
(Level): Controls the overall output level of the pedal, from -20dB to +10dB. Unity gain is near 1 o'clock.
Regen: Adjusts the amount of flanged signal fed back into the modulation. Zero feedback is at noon, clockwise increases the positive feedback for a standard flanger sound. Twist this knob counter-clockwise for negative feedback and a unique "inside out" flange.
Select Button - tap to choose a new effect mode:
Auto: Traditional flanging is found here. The LFO of the F.13 Neo is actually a "hypertriangular" waveform, so that the flanger spends more time in the interesting portions of the sweep. The ALT1 knob controls the sweep offset, sometimes referred to as "manual."
Hint: Set the Rate control at zero for "filter matrix" style manual flanging. The Depth knob controls the flange position.
Step: The flanger LFO is forced to "step" to distinct values for transforming robot sounds. The F.13 Neo has eight patterns, selected by the ALT1 control: Up, Down, Up+Down, Square, Whip, Two+Three, UpUpDnDn, and Random.