Synth For Sale

ALM/Busy Circuits

ALM / Busy Circuits is a UK-based modular synth manufacturer known for clean design, clever engineering, and modules that quietly become essentials in a Eurorack system. Founded by musician and engineer Matthew Allum, the brand has a reputation for solving real musical problems rather than chasing gimmicks, which is why their modules show up in so many serious, long-term racks.

The range covers everything from rock-solid clocking and sequencing to sampling, modulation, mixing, and performance utilities. ALM modules are typically compact, logically laid out, and designed to work beautifully with other brands as well as with each other. Whether you’re building a tight live performance system or a deep studio rack, ALM Busy Circuits gear is trusted for its reliability, musicality, and thoughtful approach to modular synthesis.

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  • 12-Voice
  • 25-Key
  • 29-Key
  • 32-Key
  • 37-Key
  • 49-Key
  • 61
  • 61-Key
  • 76-Key
  • 8
  • 8-Voice
  • 88-Key
  • Accessories
  • Algorithm
  • Aluminium
  • Analog
  • Analogue
  • ARP
  • Bass
  • Blofeld
  • Blue
  • Boutique
  • Cable
  • Cables
  • Case
  • CatSynth
  • Circuit
  • Circuit synth
  • Circuit workstation
  • Clavinova
  • Controller
  • CV
  • Desktop
  • Digital
  • Digital Piano
  • digital piano workstation
  • Digital Pianos
  • Digital Synths
  • Drum
  • Drum Machine
  • Dual
  • Dynamic
  • Dynamic 88-Key
  • Dynamic Effects
  • Dynamic Hybrid
  • Dynamic Studio
  • Edition
  • Effect
  • Effect Source
  • Effect Stage
  • Effect Voices
  • Effects
  • Effects 88-Key
  • Effects Analog
  • Effects Black
  • Effects Effect
  • Effects Guitar
  • Effects Stage
  • Effects Stereo
  • Elektron
  • Engineering
  • Envelope
  • Eurorack
  • Expansion Modules
  • Fantom
  • Fantom synth
  • Filter
  • Filter Pedal
  • Filter Supply
  • FM
  • Frames
  • Generator
  • Gray
  • Green
  • Grey
  • Groove
  • Groovebox
  • Guitar
  • Guitar Voices
  • Guitar X
  • Hybrid
  • Hybrid Stereo
  • II
  • Intellijel
  • Interlocking
  • Iridium
  • JMT
  • Juno-6
  • Key
  • Key 49
  • Keyboard
  • keyboard 88-key
  • Keyboard Cables
  • Keyboard Digital
  • Keyboard Dynamic
  • Keyboard Effects
  • keyboard modular
  • Keyboard Piano
  • keyboard sampler
  • keyboard sequencer
  • keyboard workstation
  • Keyboards
  • Keys
  • KeyStep
  • Korg
  • Launchkey
  • LFO
  • Light Oak
  • Light Oak Digital
  • Linear
  • Linear Voices
  • Live
  • Live New
  • Liven
  • Male
  • Maple
  • Matt Black
  • Matte Black
  • metal
  • Micro
  • MIDI
  • MIDI Bass
  • MIDI Controller
  • MIDI Keys
  • MIDI modular
  • MIDI sequencer
  • MIDI synth
  • MINI
  • MINI Keys
  • MiniFreak
  • MiniMod
  • Mixer
  • MK2
  • MkII
  • MkII monophonic
  • MKIII
  • Mod
  • Modal
  • Model
  • Modeling
  • Modeling Black
  • Modeling Piano
  • Modeling Stereo
  • Modular
  • Module
  • Monophonic
  • Montage
  • MPC
  • MPC2000
  • Natural
  • Natural Piano
  • Nautilus
  • Neutral
  • New
  • New USB
  • Noise
  • Nord Keyboards
  • One
  • ORANGE
  • Orchestrator
  • Oscillator
  • Pack
  • Pad
  • Panel Pedal
  • Patch
  • Pedal
  • Pedal Keys
  • Pedal MIDI
  • Pedal MINI
  • Pedal X
  • Percussion
  • Percussion Hybrid
  • Percussion Source
  • Piano
  • Piano Bench
  • Piano digital
  • Piano digital piano
  • Piano Key
  • Piano metal
  • Piano Multi
  • Piano X
  • Pico
  • Pink
  • Plus
  • Polished Ebony
  • Polished White
  • Polished White Modeling
  • Polyphonic
  • Polyphonic Generator
  • Portable
  • Portable 76-Key
  • Portable Effects
  • Portable Piano
  • portable piano 88-key
  • Portable Stereo
  • Power
  • Power Drum
  • Power MINI
  • Power Panel
  • Power Stage
  • Production
  • Professional
  • Programmable
  • PURPLE
  • Rackmount
  • Red
  • Roland
  • Rosewood
  • Rosewood Hybrid
  • S2000
  • S3000XL
  • S900
  • S950
  • Sampler
  • sampler sequencer
  • Samplers and Sequencers
  • Sampling
  • Semi-Modular
  • Semi-modular & Desktop Synths
  • Semi-modular & Desktop Synths keyboard
  • Semi-modular & Desktop Synths MIDI
  • Semi-modular & Desktop Synths synth
  • Sequencer
  • sequencer 88-key
  • Sequencer Modular
  • Sequencing
  • SetonixSynth
  • Slimline
  • Slimline Effects
  • Soma
  • Sonicware
  • Sound Synthesizers
  • Source
  • Source Black
  • Source Keys
  • Stage
  • Stage 8
  • Stage Key
  • Stage MIDI
  • stage piano
  • stage piano portable piano
  • stage piano synth
  • Standalone
  • Stands
  • Station
  • Stereo
  • Stereo 88-Key
  • Studio
  • Studio Source
  • Studio Synth
  • Studio Voices
  • Supply
  • Supply Effect
  • Supply Micro
  • Supply Source
  • Supply Voices
  • Synth
  • synth analog
  • synth groovebox
  • synth modular
  • Synth One
  • Synth Piano
  • synth polyphonic
  • Synth Power
  • synth workstation
  • Synthesiser
  • Synthesizer
  • Synthesizers
  • Synthetic
  • SynthRacks
  • Synths
  • Synths & Keys
  • Synths & Workstations
  • Synths & Workstations digital piano
  • Synths & Workstations synth
  • Synths 88-Key
  • Synths Stereo
  • Synths Studio
  • Synthstrom
  • Teenage
  • Teia
  • TS
  • USB
  • USB Key
  • Used
  • V2
  • VCA
  • VCF
  • VCO
  • VL-Tone
  • Voice
  • Voice Stage
  • Voices
  • Voices Power
  • Volca
  • Wavestate
  • Wavetable
  • Wavetable Filter
  • White Ash
  • White digital piano
  • White Digital Pianos stage piano
  • Workstation
  • workstation sequencer
  • X
  • X synth
  • XL
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