Erica Synths Hexinverter Mutant Brain Eurorack Module


The Mutant Brain is the central nervous system of a modern eurorack modular setup. A versatile and highly configurable link between your stage and studio MIDI gear. It packs 16 eurorack compatible outputs into a tiny, super affordable 8HP package.

Functions: Clock Generator , CV Modulation , MIDI , Utility
Height: 3U
Width: 8hp

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MUTANT BRAIN Eurorack Module
16 output ultra-flexible midi to trigger, sync, polyphonic CV and gate, and more!

The Mutant Brain is the central nervous system connecting your modular analog eurorack system to MIDI gear, especially for percussion, polyphonic notes, and sync duties! It packs 16 eurorack compatible outputs into a tiny, super affordable 8HP package.

The 4 CV outputs and 12 Gate/Trig outputs are all universally reconfigurable. Triggers, gates, clock divisions and sync signals, polyphonic keyboard playing, velocity, sequencer transport, LFOs - you name it!

Configuring your patch is easy - just assign each output as you like in the Mutant Brain Surgery configuration utility, then send the MIDI SysEx file to the module and forget about it - the Mutant Brain remembers it all for you.

Designed with live and studio performance in mind, the Mutant Brain does away with wasted panel space and complex menu-diving interfaces, while freeing you from the limited "auto-learn" type MIDI interface. An auto-learn interface sometimes doesn't play well with the limitless combinations of different gear setups which today's modular performers play live with.

The 16 eurorack compatible outputs are all configurable as a plethora of different functions, with 4 CV outputs and 12 digital Gate/Trig outputs available to assign as you please.

All 16 outputs are capable of having different MIDI channels and/or note ranges assigned to them!

4 CV Outputs (0V to 8V) can be

  • Notes (Mono or Polyphonic, V/Oct or V/Hz)
  • Pitch Bend, Velocity or Aftertouch
  • MIDI CC values (LFOs, modulation, etc.)
  • Fixed Voltage Values

2 GATE Outputs (0 to 5V) can be

  • Note Gates and Triggers
  • Drum Triggers, Retriggers
  • MIDI Transport (Start, Stop, Run, Resets)
  • MIDI Clock Ticks (Divisions)
  • CC Value Above/Below Threshold
  • Each GATE output has an adjustable trigger length between 1 and 120ms

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