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'Cicely' is an “octave fuzz” effect, inspired by the legendary “Octavia” guitar pedal, created by Roger Mayer and most notably used by Jimi Hendrix. There is an interesting history of the pedal on Roger's website here. Cicely adapts the concept for the modular environment, adds some extra features, and of course puts the effect under CV control.

The effect is essentially one of adding an octave on top of the input note, but this only really applies to pure input tones – for more complex tones, the sound is changed in all sorts of interesting ways. This is combined with the possibility of overdriving the sound for even more edge, while the unique 'Centre' control adds asymmetrical clipping.

As a bonus feature, Cicely also includes an envelope follower.

The module is 100% analogue.


Sound On Sound magazine (June 2024 issue) said

[I] found it predictably gritty, weighty and generally excellent‑sounding

Read the full review here.

Waveform magazine (issue 12) said

The movement that the Centre and Gain CV modulation provides is immense … there was a time I would have thought that patching a signal out of my modular and into a fuzz pedal was good enough, but those days are over.

Read the full review here.


Cicely's specifications are as follows:
  • Panel width: 8HP
  • Module depth: 37mm
  • Current draw: 51mA on the +12V rail, 43mA on the -12V rail
  • Inputs:
    • Audio input (x2)
    • CV inputs for gain, centre, and mix
  • Outputs:
    • Audio output
    • Envelope follower output
    • Envelope follower output (inverted)

For more detail, please see the user manual.
Explore the Expert Sleepers analogue modules:

Pricing & Availablity

Cicely is available now.

MSRP: UK £159 (inc VAT), US $189 (exclusive of sales tax), EU €154.36 (exclusive of VAT)

For purchasing links, please see where to buy.

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