This FX unit is modeled after the vibrato of the once-ubiquitous Roland JC-120™ and of the Shin-ei Uni-Vibe™ pedal, which imitated a Leslie (think David Gilmour).


This control sets the cycle speed of the LFO. Minimum settings will produce a sweeping effect, higher settings will create a more warbling effect.


The Depth control adjusts the amount of pitch modulation from the LFO.


Engages and disengages synchronization of the LFO rate with the host’s tempo.


This drop-down menu allows you to select different vibratos after which this effect has been modeled:

  • The Roland JC-120™ amplifier was an Eighties classic. Popular for its clean, built-in analog chorus and vibrato FX, it was used in the New Wave scene by bands like The Police and The Cure, and even Supertramp and jazz guitarist Pat Metheny. The vibrato is faithfully-reproduced, here.
  • The spinning speaker of the Shin-ei Uni-Vibe™ pedal was originally meant to imitate a Leslie™ rotating speaker, and although it was not too successful at that (!), it had a cool sound that everyone loved. This was achieved via a series of phasing filters.


Controls the amount of delay feedback, which produces a stronger flanging resonance.


Engaging this switch makes the effected signal mono.


Adjusts the overall output.