Moffenzeef Modular

A Grimeball Percussion Module

The Genetically Modified oscillator (GMO) is an open source, lo-fi, digital, esoteric drum module. Rather than taking a “set it and forget it” approach to drum synthesis, the GMo is outfit with complete bipolar CV control over every parameter. The user can dial in everything from microsound blips, to drawn out gongs, to screeching mutated beasts. When in looping mode the GMo can be viewed as a mutated VCO, combining the best elements of granular and wavetable synthesis. Its low resolution output means lots of side-band modulation, noise, and most importantly: character. This beast is best understood in practice rather than in theory.

Try the Bøbcat or Møngrel alternative firmware for more fun!


50 mA +12V
10 mA -12V
30 mm deep