ALM / Busy Circuits is a UK based audio electronics company producing original, useful and fun devices for the creation, manipulation and control of sound. We focus primarily on the Eurorack modular synthesizer format.

To keep updated, please follow us on Twitter and Instagram and visit our YouTube and Soundcloud pages for more demos.

For product support please email help@busycircuits.com For more general enquiries please email info@busycircuits.com


    8 Channel Audio & CV Sampler
  • mmMidi
    MIDI to CV interface
  • MCO
    Compact Digital VCO
  • Quaid Megaslope
    Multi Mode Modulator
  • HPO
    Headphone Output
  • MUM M8
    Low Pass Filter
  • Pamela's NEW Workout
    Master Clock and Modulator
  • PNW Expanders
    Extra Pam Classes!
  • PE-1
    Dual Band Parametric EQ
  • Akemie's Taiko
    FM Drum Voice
  • Sid Guts Deluxe
    Eurorack SID Voice
  • Akemie's Castle
    Digital FM Dual VCO
  • O/A/x2
    Dual offset and attenuverter
  • Tangle Quartet
    Quad Linear VCA and Mixer
  • Pip Slope
    Compact Envelope Generator
  • Boss Bow Tie
    Voltage Controlled Switch
  • S.B.G
    Effects Pedal Adapter
  • Dinky's Taiko
    12 Bit Digital Drum Voice
  • Beast’s Chalkboard
    Octave Switcher + More
Module Index
  • ALM023: mmMidi
  • ALM021: MCO
  • ALM020: Quaid Megaslope
  • ALM019: HPO
  • ALM018: MUM M8
  • ALM017: Pamela's NEW Workout
  • ALM017-EX: PNW Expanders
  • ALM016: PE-1
  • ALM015: Akemie's Taiko
  • ALM012: Sid Guts Deluxe
  • ALM011: Akemie's Castle
  • ALM010: O/A/x2
  • ALM009: Tangle Quartet
  • ALM008: Pip Slope
  • ALM007: Boss Bow Tie
  • ALM006: S.B.G
  • ALM005: Dinky's Taiko
  • ALM002: Beast’s Chalkboard
    • Discontinued
    • ALM001: Pamela's Workout ×
    • ALM003: SID GUTS ×
    • ALM013: Haswell's Taiko ×
    • ALM004: D.S.G ×