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Keeley Super Mod Workstation Pedal

Written by

Ollie Mason

The Keeley Super Mod Workstation is the ultimate pedal for those that like to use multiple types of effects at the same time but don't want to go down the big multi effects route. With two completely separate modulation sections each with 8 modes you can really dial in a lot of cool effects that you may not have previously thought of using.

Mod 1

On the first section you have 8 effects with a tap temp control. A lot of these are timing based effects that can be set to the beat using that tap tempo option. With Tremolo, Harmonic Tremolo, Filter/Wah, Phaser, ADT, Rotary, Digital Delay and Analog Delay available by the 8 way selector switch even this half of the pedal is worth the price of admission. All of these effects are based off of Keeley designs that have existed for years and have found their way on to many pro pedalboards, these are not just cheap effects chucked together, this is the real deal.

Mod 2

On this side you have some of the same effects but a few different ones as well. Harmonic Tremolo, Phaser, Chorus/Vibrato, Flanger, Rotary, Digital Delay, Hall Reverb, and Plate Reverb are all on this side. Instead of having a tap tempo control for on the fly changes you can plug in an optional expression pedal. Again all of these effects are based on some of Keeley's best so you know every single setting will sound great.

Here's what Keeley say about the Super Mod Workstation

Sonically drench yourself in swirling modulated tones.  Not many effects can be as provocative as a chopping tremolo, a swirling rotary, a dreamy chorus, or a crazed filter sound.  Nothing compares 2 a thick flanger or deep harmonic tremolo.  Nothing goes better with modulation than delay and reverb.  With the Super Mod Workstation you can combine 2 effects together to create a nearly endless soundscape of tones.  Add tap tempo and an expression pedal and you have all the tools at your disposal to create a mesmerizing array of sounds.

The Super Mod Workstation contains many of Keeley's finest effects.  The Harmonic Tremolo in this unit is inspired by vintage brown face amps.  The Keeley DynaTrem contained our first Harmonic Tremolo.  Many consider this deeper and thicker sounding than the U Vibe type effect.  The ADT in the Super Mod Workstation is from the 30ms Automatic Double Tracker.  Last year that effect set the effect world on fire with the best complete ADT unit in a stomp box.

The Super Mod Workstation allows you to combine effects like Tremolo, Filter, Phaser, Chorus, Rotary Speaker, or Delay with other similar modulation effects, including delay or reverb!  For example you can combine our famous 30ms Double Tracker sound in the ADT, with a Flanger, or an Echo, or Plate Reverb.  Another example would be to use Bank 1 - Phaser sound, combined with Bank 2 - Delay.  You can use the expression pedal to run delays into self oscillation feedback!  You can Tap Tempo input a rate for the Harmonic Tremolo sound on Bank 1 and then use an expression pedal input for speed of the Rotary Cab sound on Bank 2.  Decide it's #modulationFreeMonday-  Well, you can use the Analog Delay on Bank 1 and a super wet Hall Reverb on Bank 2.

Two banks of eight legendary effects.  Super Fidelity.  Super Compact.

The Super Mod Workstation has Tap Tempo for Mod Bank One, and external expression control on Mod Bank Two.


  • Tremolo w/triangle to sine waveform control
  • Harmonic Tremolo w/presence tone control
  • Filter Trem w/oscillator and random control
  • Phaser w/feedback control
  • ADT w/blend control
  • Rotary Cabinet Sim w/treble horn control
  • Digital Delay
  • Analog Delay w/dynamic modulation
  • Chorus/Vibrato w/blend control
  • Flanger w/positive or negative feedback
  • Hall Reverb
  • Plate Reverb
  • Tap Tempo on Modulation Bank 1
  • Expression Control on Bank 2
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