Moffenzeef Modular Deviant

Module designed with the intention of making forcing other modules to sound like glitchy/garbage/grotesque noise
MFR# Deviant
Moffenzeef Modular Deviant
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Not your father's random: If you are looking for a clean stepped random stop reading now. The Moffenzeef Modular Deviant was designed with the intention of forcing other modules to sound like glitchy/garbage/grotesque noise.

When triggered, the Deviant outputs a random voltage between the ranges set by Top and Bottom knobs respectively (-5 V to 5 V). Both Top and Bottom have bipolar CV inputs, allowing the user to modulate the window of voltages.

To continue in the Moffenzeef ethos of "kraptastik" electronics, there is no DAC on the output of the Deviant. Instead, a simple RC filter is controlled by the “Smooth” knob allowing the user to dial in the amount of noise, and the overall slew of the output.

The design relies heavily on the gnarly sound of the PWM carrier frequency emitted from the brain of the module which injects itself into whatever you plug the Deviant into. When plugged into parameters expecting hard edges (a la Specimen on GMo, or rotate on a 4 ms module) the Deviant will make the target glitch subtly which adds "krispidy krunchidy klix n' pops".

If plugged into an audio rate source like a VCo or VCF, the carrier frequency gives the target a mild timbral shift reminiscent of ring mod.

This module pairs nicely with drum modules where the user wants to dial in subtle variations in timbre upon each triggering of the drum..


  • Separate control of top and bottom range of random voltages
  • Bipolar CV inputs for top and bottom range of random voltages
  • Slew per channel
  • Channel 1 normalized to Channel 2 For two channels of random from a single trigger source
  • Open source: users can hack and flash code from github
  • Low resolution and noisy output: a characterized take on a classic technique

Additional Information

Condition New
Depth 20 mm
Chassis module
Module Slot Count 10hp
Connector Type 3.5 mm
Power Consumption +12 V 40 mA / -12 V 20 mA / +5 V 0 mA

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