Boolean Logic (BL)

Boolean Logic (BL)

This module offers a range of boolean logic functions including AND, OR and NOT.


The AND gate is useful for combining signals to trigger a signal event; such as a patching gate signals from multiple sequencers. The OR gate is great for creating polyrhythms from multiple signal inputs.


The module also features comparator-based inputs to allow a range of non-gated signals to be used, such as envelopes or a sine wave etc.



  • Offers a range of boolean logic functions, including AND, OR and NOT.
  • All outputs are 10V logic.
  • Comparator-based inputs allow non-gated signals to be used e.g. envelopes, sine wave etc.
  • LED indicators on each output.
  • Ergonomic design.
  • Hand-built and tested in the UK.



  • Format: Eurorack
  • Width: 8HP
  • Depth: approx. 40mm
  • Power consumption:
    • +12V: 80mA
    • -12V: 40mA
    • +5V: 0mA



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