Eurorack + Modular Synths

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  1. Expert Sleepers ES-9
    Expert Sleepers ES-9 Eurorack Audio + CV Interface 16hp
    $635.00

    In Stock Available immediately!
  2. Expert Sleepers Super Disting EX Plus Alpha
    Expert Sleepers Super Disting EX Plus Alpha 8hp
    $399.00

    In Stock Available immediately!
  3. Befaco 7U Powered Eurorack Case
    Befaco 7U Powered Eurorack Case - 104HP
    $749.99

    Backorder Reserve your order today!
  4. Befaco M3 Knurlies Eurorack Screws
    Befaco M3 Knurlies Eurorack Screws
    As low as $24.99
    Multiple Options Make a selection for stock info
  5. ES-8 USB Audio Interface
    Expert Sleepers ES-8 USB Audio Interface 8hp
    $459.00

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

    In Stock Available immediately!
  7. Befaco Fx Boy Cartridge Multi-Effects Module
    Befaco Fx Boy Cartridge Multi-Effects Module 12hp
    $419.99

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  8. Expert Sleepers FH-2, front view
    Expert Sleepers FH-2 Factotum USB MIDI Host + MIDI-CV 8hp
    $309.00

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

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

    In Stock Available immediately!
  11. Befaco Output v3 module, front view
    Befaco Output v3 4hp
    $149.99

    In Stock Available immediately!
  12. Disting MK4 Multifunction Module
    Expert Sleepers Disting MK4 Multifunction Module 4hp
    $195.00

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  13. ES-3 MK4 Lightpipe to CV Interface
    Expert Sleepers ES-3 MK4 Lightpipe to CV Interface 8hp
    $209.00

    In Stock Available immediately!
  14. Expert Sleepers FHX-8CV FH-2 Factotum Expander
    Expert Sleepers FHX-8CV FH-2 Expander 4hp
    $145.00

    In Stock Available immediately!
  15. Der Mann mit der Maschine Droid
    Der Mann mit der Maschine Droid Universal CV Processor 8hp
    $419.99

    In Stock Available immediately!
  16. Expert Sleepers Otterley Multi-LFO
    Expert Sleepers Otterley Multi-LFO 8hp
    • NEW
    $199.00

    Preorder New release—reserve yours today!
  17. Befaco Pony VCO 3U Thru-Zero Oscillator
    Befaco Pony VCO 3U Thru-Zero Oscillator 4hp
    $229.99

    In Stock Available immediately!
  18. Befaco 1U STMix 4-Channel Stereo Mixer
    Befaco 1U STMix 4-Channel Stereo Mixer 28hp
    $99.99

    In Stock Available immediately!
  19. Befaco Noise Plethora Eurorack Module
    Befaco Noise Plethora Three-Channel Noise Generator 14hp
    $349.99

    In Stock Available immediately!
  20. Der Mann mit der Maschine E4
    Der Mann mit der Maschine E4 Rotary Encoder Expander for Droid 6hp
    $189.99

    Preorder New release—reserve yours today!
  21. Befaco Percall Four-Channel Envelope + VCA
    Befaco Percall Four-Channel Envelope + VCA 12hp
    $299.99

    In Stock Available immediately!
  22. Befaco 1U Out Line Output Module
    Befaco 1U Out Line Output Module 16hp
    $99.99

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  23. Expert Sleepers Little Mikey Preamp
    Expert Sleepers Little Mikey Preamp 8hp
    $175.00

    In Stock Available immediately!
  24. Befaco CV Thing CV-MIDI Converter
    Befaco CV Thing CV-MIDI Converter 6hp
    $279.99

    In Stock Available immediately!
  25. Der Mann mit der Maschine M4
    Der Mann mit der Maschine M4 Motorized Fader Expander for Droid 14hp
    $499.00

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

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  27. ES-5 mk3 Expander for ES-3
    Expert Sleepers ES-5 mk3 Expander for ES-3 4hp
    $125.00

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  28. Befaco Synth Duster
    Befaco Synth Duster
    $13.49

    In Stock Available immediately!
  29. Der Mann mit der Maschine B32
    Der Mann mit der Maschine B32 Button Expander for Droid 10hp
    $289.99

    In Stock Available immediately!
  30. Befaco Hexpander
    Befaco Hexpander Hexmix Expander 28hp
    $369.99

    In Stock Available immediately!
  31. Befaco Hexmix
    Befaco Hexmix 6-Channel Performance Mixer 28hp
    $499.99

    In Stock Available immediately!
  32. Expert Sleepers Lorelei Oscillator
    Expert Sleepers Lorelei Analog Oscillator 8hp
    $189.00

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  33. Befaco Voltio Precision Adder + Transposer
    Befaco Voltio Precision Adder + Transposer 6hp
    $149.99

    In Stock Available immediately!
  34. Der Mann mit der Maschine X7
    Der Mann mit der Maschine X7 MIDI + USB Expander for Droid 4hp
    $239.99

    In Stock Available immediately!
  35. Expert Sleepers Tiny MIDI Breakout Expander
    Expert Sleepers Tiny MIDI Breakout Expander 2hp
    $55.00

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  36. ES-6 mk3 CV to Lightpipe Interface
    Expert Sleepers ES-6 mk3 CV to Lightpipe Interface 4hp
    $160.00

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  37. Expert Sleepers MIDI Breakout Expander
    Expert Sleepers MIDI Breakout Expander 4hp
    $50.00

    In Stock Available immediately!
  38. Expert Sleepers Pandora
    Expert Sleepers Pandora Analog Bandpass Filter + Distortion 8hp
    $199.00

    In Stock Available immediately!
  39. Befaco Inamp Two-Channel Preamp
    Befaco Inamp Two-Channel Preamp 4hp
    $139.99

    In Stock Available immediately!
  40. Befaco Kickall
    Befaco Kickall Analog Kick Generator 6hp
    $239.99

    In Stock Available immediately!
  41. Der Mann mit der Maschine P10
    Der Mann mit der Maschine P10 Knob Expander for Droid 5hp
    $126.99

    In Stock Available immediately!
  42. Expert Sleepers CVM-8
    Expert Sleepers CVM-8 CV to MIDI + I2C Converter 4hp
    $225.00

    In Stock Available immediately!
  43. Befaco Rampage
    Befaco Rampage Dual Slope Generator 18hp
    $299.99

    Backorder Reserve your order today!
  44. Der Mann mit der Maschine G8
    Der Mann mit der Maschine G8 Gates Expander for Droid 4hp
    $159.99

    In Stock Available immediately!
  45. ESX-8CV Mk2 Expansion
    Expert Sleepers ESX-8CV Mk2 Expansion 4hp
    $175.00

    In Stock Available immediately!
  46. Befaco Trolley Bus
    Befaco Trolley Bus Eurorack Power Supply + Busboard
    $249.99

    Backorder Reserve your order today!
  47. Befaco M2.5 Knurlies Eurorack Screws
    Befaco M2.5 Knurlies Eurorack Screws
    As low as $24.99
    Multiple Options Make a selection for stock info

1-48 of 111 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.