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

    In Stock Available immediately!
  5. AJH Synth MiniMod Keyz Modular Synthesizer
    AJH Synth MiniMod Keyz Modular Synthesizer
    $3,499.99

    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

    In Stock Available immediately!
  7. 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
  8. ALM PPexp1 Pamela's Pro Workout Expander
    ALM Busy Circuits PPexp1 Pamela's Pro Workout Expander 4hp
    $149.00

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

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

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

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

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

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

    In Stock Available immediately!
  15. AJH Synth MiniMod Transistor Core VCO
    AJH Synth MiniMod Transistor Core VCO 14hp
    As low as $365.00
    Multiple Options Make a selection for stock info
  16. 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
  17. Tangle Quartet Quad VCA Mixer
    ALM Busy Circuits Tangle Quartet Quad VCA Mixer 8hp
    $199.00

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

    Backorder Reserve your order today!
  19. ALM Busy Circuits mmMIDI MIDI to CV Converter
    ALM Busy Circuits mmMIDI MIDI to CV Converter 4hp
    $149.99

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

    Backorder Reserve your order today!
  21. ALM Busy Circuits MFD Stereo Crossfader
    ALM Busy Circuits MFD Stereo Crossfader 6hp
    $169.99

    In Stock Available immediately!
  22. AJH Synth MiniMod Transistor Ladder VCF
    AJH Synth MiniMod Transistor Ladder VCF 14hp
    As low as $289.00
    Multiple Options Make a selection for stock info
  23. AJH Synth MiniMod Tap Tempo VC-LFO
    AJH Synth MiniMod Tap Tempo VC-LFO 12hp
    As low as $299.00
    Multiple Options Make a selection for stock info
  24. ALM Busy Circuits HPO Headphone Output Eurorack Module
    ALM Busy Circuits HPO Headphone Output 2hp
    $79.99

    In Stock Available immediately!
  25. AJH Synth Multi Burst Envelopes
    AJH Synth MiniMod Multi Burst Envelopes 12hp
    As low as $289.00
    Multiple Options Make a selection for stock info
  26. Mum M8 S950 Lowpass Filter
    ALM Busy Circuits Mum M8 S950 Lowpass Filter 8hp
    $239.00

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

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

    In Stock Available immediately!
  29. AJH Synth MiniMod VCA
    AJH Synth MiniMod VCA 10hp
    As low as $219.00
    Multiple Options Make a selection for stock info
  30. ALM MCFx2 Dual State-Variable Filter
    ALM Busy Circuits MCFx2 Dual State-Variable Filter 14hp
    $289.99

    In Stock Available immediately!
  31. AJH Synth Ring SM Ring Modulator Mixer
    AJH Synth Ring SM Ring Modulator Mixer 14hp
    As low as $345.00
    Multiple Options Make a selection for stock info
  32. AJH Synth Gemini 2412 Dual Vintage SVF
    AJH Synth Gemini 2412 Dual Vintage State Variable Filter 28hp
    As low as $445.00
    Multiple Options Make a selection for stock info
  33. AJH Synth Fixed Filter Bank 914
    AJH Synth Fixed Filter Bank 914 30hp
    As low as $549.00
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  34. AJH Synth Precision Voltages
    AJH Synth Precision Voltages 10hp
    As low as $275.00
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  35. ALM Busy Circuits Case Mount Screws M3 / 6mm
    ALM Busy Circuits Case Mount Screws M3 / 6mm
    $29.99

    In Stock Available immediately!
  36. AJH Synth Triple Cross Crossfader + Panner
    AJH Synth Triple Cross Crossfader + Panner
    $359.99

    In Stock Available immediately!
  37. AJH Synth Chance Delay Probability Gate Delay
    AJH Synth Chance Delay Probability Gate Delay
    $240.00

    In Stock Available immediately!
  38. AJH Synth Entropic Doom Noisillator
    AJH Synth Entropic Doom Noisillator 14hp
    $355.00

    In Stock Available immediately!
  39. AJH Synth Next Phase Stereo Phaser
    AJH Synth Next Phase Stereo Phaser 18hp
    As low as $419.00
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  40. AJH Lunar Module Apollo Space Mission Simulator
    AJH Synth Lunar Module Apollo Space Mission Simulator 14hp
    $315.00

    In Stock Available immediately!
  41. AJH Synth MiniMod DH-ADSR Envelope
    AJH Synth MiniMod DH-ADSR Envelope 10hp
    As low as $289.00
    Multiple Options Make a selection for stock info
  42. ALM TAZM-O Analog Through-Zero Oscillator
    ALM Busy Circuits TAZM-O Analog Through-Zero Oscillator 12hp
    $379.00

    In Stock Available immediately!
  43. Beast's Chalkboard Octave Switch
    ALM Busy Circuits Beast's Chalkboard Octave Switch 6hp
    $139.99

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

    In Stock Available immediately!
  45. S.B.G. Pedal Interface
    ALM Busy Circuits S.B.G. Pedal Interface 4hp
    $139.99

    In Stock Available immediately!
  46. SID GUTS Deluxe C64 Voice
    ALM Busy Circuits SID GUTS Deluxe C64 Voice 19hp
    $399.99

    Backorder Reserve your order today!

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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.