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Eurorack + Modular Synths

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  1. ALM Busy Circuits Pamela's Pro Workout
    ALM Busy Circuits Pamela's Pro Workout Master Clock and Modulator 8hp
    • NEW
    $339.00

    Preorder New release—reserve yours today!
  2. ALM ALM-CS 6U Powered Eurorack Case
    ALM Busy Circuits ALM-CS 6U Powered Eurorack Case
    As low as $299.00
    Multiple Options Make a selection for stock info
  3. ALM MFX Stereo Multi-Effects Processor
    ALM Busy Circuits MFX Stereo Multi-Effects Processor 6hp
    • STAFF PICK
    $299.00

    In Stock Available immediately!
  4. ALM Busy Circuits Squid Salmpler
    ALM Busy Circuits Squid Salmple 21hp
    $499.00

    Out of Stock Reserve your order today!
  5. ALM Busy Circuits ASQ-1 Sequencer
    ALM Busy Circuits ASQ-1 Sequencer 32hp
    $365.00

    In Stock Available immediately!
  6. Acid Rain Maestro Performance CV Generator
    Acid Rain Technology Maestro Performance CV Generator 20hp
    $399.00

    Out of Stock Reserve your order today!
  7. Befaco M3 Knurlies Eurorack Screws
    Befaco M3 Knurlies Eurorack Screws
    As low as $25.00
    Multiple Options Make a selection for stock info
  8. Acid Rain Technology Constellation
    Acid Rain Technology Constellation Euclidean Rhythm Sequencer 28hp
    $549.00

    In Stock Available immediately!
  9. Schlappi Engineering Three Body
    Schlappi Engineering Three Body Triple FPGA Oscillator 30hp
    As low as $550.00
    Multiple Options Make a selection for stock info
  10. Acid Rain Chainsaw Polyphonic Oscillator
    Acid Rain Technology Chainsaw Polyphonic Oscillator 4hp
    $269.00

    In Stock Available immediately!
  11. Befaco I4 Instrument Interface
    Befaco I4 Instrument Interface 8hp
    $239.99

    In Stock Available immediately!
  12. Befaco Stmix
    Befaco Stmix 4-Channel Stereo Mixer 6hp
    $149.99

    In Stock Available immediately!
  13. Befaco Noise Plethora Eurorack Module
    Befaco Noise Plethora Three-Channel Noise Generator 14hp
    $349.00

    In Stock Available immediately!
  14. ALM Busy Circuits Tyso Daiko Dual Drum Voice
    ALM Busy Circuits Tyso Daiko Dual Drum Voice 14hp
    $349.00

    In Stock Available immediately!
  15. ALM Busy Circuits MCO Morphing Wavetable Oscillator
    ALM Busy Circuits MCO Morphing Wavetable Oscillator 6hp
    $169.00

    In Stock Available immediately!
  16. Befaco Muxlicer
    Befaco Muxlicer Sequential Switch & Sequencer 16hp
    $229.99

    In Stock Available immediately!
  17. Akemie's Taiko FM Drum Voice
    ALM Busy Circuits Akemie's Taiko FM Drum Voice 18hp
    $319.00

    In Stock Available immediately!
  18. ALM Busy Circuits Pip Slope MkII
    ALM Busy Circuits Pip Slope Mk II Envelope / LFO 4hp
    $130.00

    In Stock Available immediately!
  19. Befaco Hex Mix VCA
    Befaco Hex Mix VCA 14hp
    $299.00

    In Stock Available immediately!
  20. ALM Mega-Tang Stereo Mixer + 4-Channel VCA
    ALM Busy Circuits Mega-Tang Stereo Mixer + 4-Channel VCA 16hp
    • NEW
    $299.00

    Preorder New release—reserve yours today!
  21. Befaco Output v3 module, front view
    Befaco Output v3 4hp
    $149.99

    In Stock Available immediately!
  22. PEXP-1 Pamela's New Workout Expander
    ALM Busy Circuits PEXP-1 Pamela's New Workout Expander 4hp
    $115.00

    In Stock Available immediately!
  23. Befaco Hexmix
    Befaco Hexmix 6-Channel Performance Mixer 28hp
    $529.99

    In Stock Available immediately!
  24. ALM Jumble Henge Stereo Spectral Mixer
    ALM Busy Circuits Jumble Henge Stereo Spectral Mixer 8hp
    $285.00

    In Stock Available immediately!
  25. ALM Busy Circuits mmMIDI MIDI to CV Converter
    ALM Busy Circuits mmMIDI MIDI to CV Converter 4hp
    $115.00

    Out of Stock Reserve your order today!
  26. Tangle Quartet Quad VCA Mixer
    ALM Busy Circuits Tangle Quartet Quad VCA Mixer 8hp
    $199.00

    Out of Stock Reserve your order today!
  27. Befaco AC/DC 4x4 USB Audio Interface Module
    Befaco AC/DC 4x4 USB Audio Interface Module 6hp
    $330.00

    In Stock Available immediately!
  28. Acid Rain Technology Navigator Utility
    Acid Rain Technology Navigator Utility 4hp
    $89.00

    Out of Stock Reserve your order today!
  29. Akemie's Castle Dual FM Oscillator
    ALM Busy Circuits Akemie's Castle Dual FM Oscillator 38hp
    $599.00

    In Stock Available immediately!
  30. ALM MCFx2 Dual State-Variable Filter
    ALM Busy Circuits MCFx2 Dual State-Variable Filter 14hp
    $289.00

    In Stock Available immediately!
  31. ALM Busy Circuits HPO Headphone Output Eurorack Module
    ALM Busy Circuits HPO Headphone Output 2hp
    $69.00

    In Stock Available immediately!
  32. Befaco Hexpander
    Befaco Hexpander Hexmix Expander 28hp
    $389.99

    In Stock Available immediately!
  33. Befaco VCMC
    Befaco VCMC CV to MIDI Converter 20hp
    $349.99

    In Stock Available immediately!
  34. Acid Rain Technology Junction Attenuverter
    Acid Rain Technology Junction Attenuverter 4hp
    $109.00

    In Stock Available immediately!
  35. Befaco Synth Duster
    Befaco Synth Duster
    $13.49

    In Stock Available immediately!
  36. Schlappi Engineering Angle Grinder
    Schlappi Engineering Angle Grinder Quadrature Oscillator + Waveshaper 18hp
    As low as $310.00
    Multiple Options Make a selection for stock info
  37. Schlappi 100 Grit Touch-Controlled Distortion
    Schlappi Engineering 100 Grit Touch-Controlled Distortion 14hp
    As low as $260.00
    Multiple Options Make a selection for stock info
  38. O/A/x2 Dual Offset Attenuverter
    ALM Busy Circuits O/A/x2 Dual Offset Attenuverter 4hp
    $100.00

    In Stock Available immediately!
  39. Befaco Percall Four-Channel Envelope + VCA
    Befaco Percall Four-Channel Envelope + VCA 12hp
    $299.00

    In Stock Available immediately!
  40. Mum M8 S950 Lowpass Filter
    ALM Busy Circuits Mum M8 S950 Lowpass Filter 8hp
    $239.00

    In Stock Available immediately!
  41. Befaco CV Thing CV-MIDI Converter
    Befaco CV Thing CV-MIDI Converter 6hp
    $289.00

    In Stock Available immediately!
  42. ALM Boss Bow Two Switch + Signal Router
    ALM Busy Circuits Boss Bow Two Switch + Signal Router 8hp
    $189.99

    In Stock Available immediately!
  43. Befaco Pony VCO 3U Thru-Zero Oscillator
    Befaco Pony VCO 3U Thru-Zero Oscillator 4hp
    $199.00

    In Stock Available immediately!
  44. Befaco MEX Muxlicer Trigger Expander
    Befaco MEX Muxlicer Trigger Expander 4hp
    $95.00

    In Stock Available immediately!
  45. PEXP-2 Pamela's New Workout Expander
    ALM Busy Circuits PEXP-2 Pamela's New Workout Expander 2hp
    $75.00

    In Stock Available immediately!
  46. S.B.G. Pedal Interface
    ALM Busy Circuits S.B.G. Pedal Interface 4hp
    $130.00

    In Stock Available immediately!
  47. Befaco Crush Delay V3
    Befaco Crush Delay V3 Glitch Echo 11hp
    $279.00

    In Stock Available immediately!

1-48 of 93 items

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Modular synths are one of the most inspiring tools available to electronic musicians today: synthesizers that you can assemble yourself from core components, building an instrument specifically meant for your music and your workflow. These core components, called modules, each perform an individual function. Some generate sound, some process sound, and some provide a way to control other modules.

At Perfect Circuit we specialize in the Eurorack format of modular synthesizers, a standard developed by Dieter Doepfer in order to provide musicians easy and affordable access to the techniques from the large analog synths of yesteryear: Moog, Buchla, ARP, and Serge systems, and many more. Since then, Eurorack has grown considerably—now offering a wide range of unique sonic opportunities.

Now, manufacturers like Verbos Electronics and Random*Source focus on adapting classic analog designs for use in modern music. Others, like Noise Engineering, Industrial Music Electronics, or Mutable Instruments, work in the digital realm to bring new techniques to the world of hardware. Others like Rossum Electro-Music and Make Noise work in both domains to make instruments that strike an uncanny balance between analog and digital, opening new worlds of expression.

Through some combination of these modules, a mess of patch cables, and a healthy does of experimentation, many musicians have found their own unique voices: and perhaps you will find yours there, too.