Synth-1 – ‘Cyanosic Purple’ Custom Shop


Custom Shop Edition

Single Note Synth Fuzz

Reverse Attack / Swell

Bandpass Filter Control

Begins shipping on or before 03-21-2022

Out of stock

SKU: SYNTH-1-Custom-Shop-Purple Categories: , , , Tag:


Keeley Synth-1 – ‘Cyanosic Purple’ Custom Shop Edition

Begins shipping on or before 03-21-2023.

Keeley Electronics Synth-1 Effect Pedal Custom Shop Cyanosic Purple

Synth-1 in a Custom Shop ‘Cyanosic Purple’ colorway.



The Synth-1 allows you to create fuzzed-out synth waves!  Use the Filter and Blend controls to mix your guitar with the fuzz from the synth.  Go from churning slow-gear reverse swells to sounding like a light saber.

The Keeley Synth-1 is a guitar-triggered, single-note wave generator.  You control the tone of the wave with the Filter Control.  The lead-in time or swell of the note is controlled with the Attack knob.  Then use the Blend control to remove the natural tone from your guitar as you slide through synth-sounding fuzz waves.  Use an expression pedal to control the Filter, and now you have Wah-Wah-like control of the Synth-1.


  • Synth Wave Generator – Create fuzzed-out, single note synth sounds
  • Reverse Attack – Volume Swell Effect – put your guitar in slow gear!
  • Chaos Switch – change dimensional triggering and octaves and stuff
  • Filter – shape the EQ and tone of your fuzz wave
  • Wave Selector – change wave modes on the fly with your foot!
  • Control the Blend of your natural guitar and the wave generator
  • Side Mount Expression Jack for TRS control of the Filter
  • Top Mounted Jacks, True-Bypass
  • Designed and Made in the USA
  • $179

From unnatural fuzz noises to pseudo-harmonic, random glitchy counterpoint, the Keeley Synth-1 makes you the Master of the Art of Noise.



Synth-1 and Mesmer in Custom Shop Cyanosic Purple

Pair the Mesmer and Synth-1 for mind-bending, glitchy and pitch shifted delay effects!

Demo Videos:





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