Eurorack + Modular Synths

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  1. ALM Cizzle Dual Phase Distortion VCO Eurorack Module
    ALM Busy Circuits CIZZLE Phase Distortion VCO 16hp
    • NEW
    $349.99

    Preorder New release—reserve yours today!
  2. ALM MFX Stereo Multi-Effects Processor
    ALM Busy Circuits MFX Stereo Multi-Effects Processor 6hp
    $299.00

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

    In Stock Available immediately!
  4. Erica Synths Sample Drum Eurorack Module
    Erica Synths Sample Drum Percussion Source 14hp
    $369.00

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  5. Erica Synths LXR Eurorack Module
    Erica Synths LXR-02 6-Voice Drum Module 28hp
    $509.00

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  6. ALM Busy Circuits Mega Milton Compact Utilities
    ALM Busy Circuits Mega Milton Compact Utilities 8hp
    $199.99

    In Stock Available immediately!
  7. Aluminum Travel Case - 208HP
    Erica Synths Aluminum Travel Case - 208HP
    $669.00

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  8. Erica Black Sequencer Four-Track Sequencer
    Erica Synths Black Sequencer Four-Track Sequencer 42hp
    $619.00

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  9. Erica Bullfrog Desktop Semi-Modular Synthesizer
    Erica Synths Bullfrog Desktop Semi-Modular Synthesizer
    • STAFF PICK
    $609.00

    In Stock Available immediately!
  10. ALM Mega-Tang Stereo Mixer + 4-Channel VCA
    ALM Busy Circuits Mega-Tang Stereo Mixer + 4-Channel VCA 16hp
    $299.99

    In Stock Available immediately!
  11. ALM ALM-CS 6U Powered Eurorack Case
    ALM Busy Circuits ALM-CS 6U Powered Eurorack Case
    As low as $349.99
    Multiple Options Make a selection for stock info
  12. Erica Black Stereo Delay 2 Effects Processor
    Erica Synths Black Stereo Delay 2 Effects Processor 12hp
    $299.00

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  13. Erica Black System II Modular Synthesizer
    Erica Synths Black System II Modular Synthesizer
    $3,509.00

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  14. ALM PPexp1 Pamela's Pro Workout Expander
    ALM Busy Circuits PPexp1 Pamela's Pro Workout Expander 4hp
    $149.00

    In Stock Available immediately!
  15. ALM Busy Circuits ASQ-1 Sequencer
    ALM Busy Circuits ASQ-1 Sequencer 32hp
    $349.99

    In Stock Available immediately!
  16. Erica Synths Black Joystick 2 Controller
    Erica Synths Black Joystick 2 Controller 12hp
    $259.00

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  17. Drum Sequencer brings traditional 909-style sequencing to the Erica Synths lineup
    Erica Synths Drum Sequencer 42hp
    $669.00

    In Stock Available immediately!
  18. ALM Busy Circuits Pip Slope MkII
    ALM Busy Circuits Pip Slope Mk II Envelope / LFO 4hp
    $129.99

    In Stock Available immediately!
  19. Erica Synths Pico Drum 2 Percussion Synthesizer
    Erica Synths Pico Drum 2 Percussion Synthesizer 3hp
    $149.00

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  20. Erica Synths Fusion System II (with Lid)
    Erica Synths Fusion System II (with Lid)
    $2,459.00

    In Stock Available immediately!
  21. Erica Synths Techno System Modular Synth
    Erica Synths Techno System Modular Synthesizer
    $4,829.00

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  22. Erica Synths Black Hole DSP 2 Eurorack Module
    Erica Synths Black Hole DSP2 Digital Effects 16hp
    $319.00

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  23. ALM Busy Circuits MCO Morphing Wavetable Oscillator
    ALM Busy Circuits MCO Morphing Wavetable Oscillator 6hp
    $169.99

    In Stock Available immediately!
  24. ALM Busy Circuits Quaid Megaslope Complex Function Generator
    ALM Busy Circuits Quaid Megaslope Complex Function Generator 19hp
    $299.99

    In Stock Available immediately!
  25. ALM ALM-CS 9U Powered Eurorack Case - 84HP
    ALM Busy Circuits ALM-CS 9U Powered Eurorack Case - 84HP
    $549.99

    In Stock Available immediately!
  26. ALM Jumble Henge Stereo Spectral Mixer
    ALM Busy Circuits Jumble Henge Stereo Spectral Mixer 8hp
    $289.99

    In Stock Available immediately!
  27. Erica Black Stereo Reverb Effects Processor
    Erica Synths Black Stereo Reverb Effects Processor 12hp
    $299.00

    In Stock Available immediately!
  28. Erica Synths Pico System II Modular Synthesizer
    Erica Synths Pico System II Modular Synthesizer
    $1,359.00

    In Stock Available immediately!
  29. Erica Black Quad VCA2
    Erica Synths Black Quad VCA2 4-Channel VCA + Mixer 10hp
    $249.00

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  30. ALM ALM-CS 3U Powered Eurorack Case
    ALM Busy Circuits ALM-CS 3U Powered Eurorack Case
    As low as $249.99
    Multiple Options Make a selection for stock info
  31. Tangle Quartet Quad VCA Mixer
    ALM Busy Circuits Tangle Quartet Quad VCA Mixer 8hp
    $199.00

    In Stock Available immediately!
  32. Akemie's Castle Dual FM Oscillator
    ALM Busy Circuits Akemie's Castle Dual FM Oscillator 38hp
    $599.00

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  33. Erica 6U Carbon Fiber Travel Case - 104HP
    Erica Synths 6U Carbon Fiber Travel Case - 104HP
    $899.00

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  34. Erica Synths Bassline Module (Black)
    Erica Synths Bassline Synth Voice 14hp
    $349.00

    In Stock Available immediately!
  35. ALM Busy Circuits mmMIDI MIDI to CV Converter
    ALM Busy Circuits mmMIDI MIDI to CV Converter 4hp
    $149.99

    In Stock Available immediately!
  36. Akemie's Taiko FM Drum Voice
    ALM Busy Circuits Akemie's Taiko FM Drum Voice 18hp
    $349.99

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  37. ALM Busy Circuits MFD Stereo Crossfader
    ALM Busy Circuits MFD Stereo Crossfader 6hp
    $169.99

    In Stock Available immediately!
  38. ALM Busy Circuits HPO Headphone Output Eurorack Module
    ALM Busy Circuits HPO Headphone Output 2hp
    $79.99

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

    In Stock Available immediately!
  40. ALM Boss Bow Two Switch + Signal Router
    ALM Busy Circuits Boss Bow Two Switch + Signal Router 8hp
    $199.99

    In Stock Available immediately!
  41. Black Output Module V2
    Erica Synths Black Output Module V2 14hp
    $319.00

    In Stock Available immediately!
  42. O/A/x2 Dual Offset Attenuverter
    ALM Busy Circuits O/A/x2 Dual Offset Attenuverter 4hp
    $100.00

    In Stock Available immediately!
  43. Erica Synths Black VCO2 Oscillator
    Erica Synths Black VCO2 Oscillator 12hp
    $279.00

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  44. Pico DSP
    Erica Synths Pico DSP 3hp
    $149.00

    In Stock Available immediately!
  45. ALM MCFx2 Dual State-Variable Filter
    ALM Busy Circuits MCFx2 Dual State-Variable Filter 14hp
    $289.99

    In Stock Available immediately!

1-48 of 208 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.