Eurorack + Modular Synths

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  1. ALM MFX Stereo Multi-Effects Processor
    ALM Busy Circuits MFX Stereo Multi-Effects Processor 6hp
    $299.00

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

    In Stock Available immediately!
  3. Mystic Circuits IDUM Gate Processor
    Mystic Circuits IDUM Gate Processor 10hp
    $295.00

    In Stock Available immediately!
  4. 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!
  5. ALM Busy Circuits Mega Milton Compact Utilities
    ALM Busy Circuits Mega Milton Compact Utilities 8hp
    • NEW
    $199.99

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

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  7. ALM ALM-CS 6U Powered Eurorack Case
    ALM Busy Circuits ALM-CS 6U Powered Eurorack Case
    As low as $349.99
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  8. ALM PPexp1 Pamela's Pro Workout Expander
    ALM Busy Circuits PPexp1 Pamela's Pro Workout Expander 4hp
    $149.00

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  9. ALM Busy Circuits Pip Slope MkII
    ALM Busy Circuits Pip Slope Mk II Envelope / LFO 4hp
    $129.99

    In Stock Available immediately!
  10. ALM Busy Circuits MCO Morphing Wavetable Oscillator
    ALM Busy Circuits MCO Morphing Wavetable Oscillator 6hp
    $169.99

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

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

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

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  14. ALM ALM-CS 9U Powered Eurorack Case - 84HP
    ALM Busy Circuits ALM-CS 9U Powered Eurorack Case - 84HP
    $549.99

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  15. ALM ALM-CS 3U Powered Eurorack Case
    ALM Busy Circuits ALM-CS 3U Powered Eurorack Case
    As low as $249.99
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  16. Akemie's Castle Dual FM Oscillator
    ALM Busy Circuits Akemie's Castle Dual FM Oscillator 38hp
    $599.00

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  17. ALM Busy Circuits mmMIDI MIDI to CV Converter
    ALM Busy Circuits mmMIDI MIDI to CV Converter 4hp
    $149.99

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  18. ALM Busy Circuits HPO Headphone Output Eurorack Module
    ALM Busy Circuits HPO Headphone Output 2hp
    $79.99

    In Stock Available immediately!
  19. Tangle Quartet Quad VCA Mixer
    ALM Busy Circuits Tangle Quartet Quad VCA Mixer 8hp
    $199.00

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

    In Stock Available immediately!
  21. ALM Busy Circuits MFD Stereo Crossfader
    ALM Busy Circuits MFD Stereo Crossfader 6hp
    $169.99

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

    In Stock Available immediately!
  23. Mystic Circuits Ana Analog Logic Module
    Mystic Circuits Ana Analog Logic 6hp
    $180.00

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  24. Mystic Circuits Portal Wave Wrapper
    Mystic Circuits Portal Wave Wrapper 12hp
    $295.00

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  25. ALM Boss Bow Two Switch + Signal Router
    ALM Busy Circuits Boss Bow Two Switch + Signal Router 8hp
    $199.99

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  26. Studio Electronics Tonestar 8106 Eurorack (Black Panel)
    Studio Electronics Tonestar 8106 Synth Voice 32hp
    $639.00

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  27. ALM MCFx2 Dual State-Variable Filter
    ALM Busy Circuits MCFx2 Dual State-Variable Filter 14hp
    $289.99

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  28. O/A/x2 Dual Offset Attenuverter
    ALM Busy Circuits O/A/x2 Dual Offset Attenuverter 4hp
    $100.00

    In Stock Available immediately!
  29. ALM Busy Circuits Case Mount Screws M3 / 6mm
    ALM Busy Circuits Case Mount Screws M3 / 6mm
    $29.99

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  30. Beast's Chalkboard Octave Switch
    ALM Busy Circuits Beast's Chalkboard Octave Switch 6hp
    $139.99

    In Stock Available immediately!
  31. Boomstar SE88 CS-80 Style Filter
    Studio Electronics Boomstar SE88 CS-80 Style Filter 20hp
    $399.00

    In Stock Available immediately!
  32. ALM PPexp2 Pamela's Pro Workout Expander
    ALM Busy Circuits PPexp2 Pamela's Pro Workout Expander 2hp
    $99.00

    In Stock Available immediately!
  33. ALM TAZM-O Analog Through-Zero Oscillator
    ALM Busy Circuits TAZM-O Analog Through-Zero Oscillator 12hp
    $379.00

    In Stock Available immediately!
  34. Mystic Circuits Tree Sequential Switch
    Mystic Circuits Tree Sequential Switch 6hp
    $250.00

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  35. Tonestar 2600 Folktek'd
    Studio Electronics Tonestar 2600 Folktek'd 32hp
    $669.00

    In Stock Available immediately!
  36. Tonestar 2600 Full Synth Voice
    Studio Electronics Tonestar 2600 Full Synth Voice 32hp
    $639.00

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  37. S.B.G. Pedal Interface
    ALM Busy Circuits S.B.G. Pedal Interface 4hp
    $139.99

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  38. SID GUTS Deluxe C64 Voice
    ALM Busy Circuits SID GUTS Deluxe C64 Voice 19hp
    $399.99

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  39. Mystic Circuits 3DVCA VCA + Mixer + Panner
    Mystic Circuits 3DVCA VCA + Mixer + Panner 6hp
    $225.00

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

    In Stock Available immediately!
  41. ALM Busy Circuits Stereo Sum Unity Mixer
    ALM Busy Circuits Stereo Sum Unity Mixer 4hp
    $85.00

    In Stock Available immediately!
  42. Tonestar 8106 Filter
    Studio Electronics Tonestar 8106 Filter 12hp
    $299.00

    Backorder Reserve your order today!
  43. Mystic Circuits Leaves Tree Expander
    Mystic Circuits Leaves Tree Expander 8hp
    $180.00

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  44. ALM Busy Circuits mmT Expander for mmMIDI
    ALM Busy Circuits mmT Expander for mmMIDI 3hp
    $119.99

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  45. PE-1 2CH Equalizer
    ALM Busy Circuits PE-1 2CH Equalizer 5hp
    $99.00

    In Stock Available immediately!

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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.