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Eurorack + Modular Synths

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  1. Disting MK4 Multifunction Module
    Expert Sleepers Disting MK4 Multifunction Module 4hp
    $195.00

    In Stock Available immediately!
  2. Expert Sleepers FH-2, front view
    Expert Sleepers FH-2 Factotum USB MIDI Host + MIDI-CV 8hp
    $309.00

    Out of Stock Reserve your order today!
  3. ES-8 USB Audio Interface
    Expert Sleepers ES-8 USB Audio Interface 8hp
    $459.00

    In Stock Available immediately!
  4. Expert Sleepers ES-9
    Expert Sleepers ES-9 Eurorack Audio + CV Interface 16hp
    $635.00

    Out of Stock Reserve your order today!
  5. Expert Sleepers Super Disting EX Plus Alpha
    Expert Sleepers Super Disting EX Plus Alpha 8hp
    $399.00

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

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

    In Stock Available immediately!
  9. ES-8 USB Audio Interface (Bitwig Edition)
    Expert Sleepers ES-8 USB Audio Interface (Bitwig Edition) 8hp
    $459.00

    Out of Stock Reserve your order today!
  10. Befaco Stmix
    Befaco Stmix 4-Channel Stereo Mixer 6hp
    $149.99

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

    In Stock Available immediately!
  12. Expert Sleepers Little Mikey Preamp
    Expert Sleepers Little Mikey Preamp 8hp
    $175.00

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

    In Stock Available immediately!
  14. Befaco CV Thing CV-MIDI Converter
    Befaco CV Thing CV-MIDI Converter 6hp
    • Sale
    $289.00 $252.88
    In Stock Available immediately!
  15. Expert Sleepers MIDI Breakout Expander
    Expert Sleepers MIDI Breakout Expander 4hp
    $50.00

    In Stock Available immediately!
  16. ES-3 MK4 Lightpipe to CV Interface
    Expert Sleepers ES-3 MK4 Lightpipe to CV Interface 8hp
    $209.00

    Out of Stock Reserve your order today!
  17. Befaco VCMC
    Befaco VCMC CV to MIDI Converter 20hp
    $349.99

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

    In Stock Available immediately!
  19. Befaco Muxlicer
    Befaco Muxlicer Sequential Switch & Sequencer 16hp
    • Sale
    $229.99 $201.24
    In Stock Available immediately!
  20. Befaco Hex Mix VCA
    Befaco Hex Mix VCA 14hp
    $299.00

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

    In Stock Available immediately!
  22. Befaco AC/DC 4x4 USB Audio Interface Module
    Befaco AC/DC 4x4 USB Audio Interface Module 6hp
    • NEW
    $330.00

    Preorder New release—reserve yours today!
  23. Befaco Noise Plethora Eurorack Module
    Befaco Noise Plethora Three-Channel Noise Generator 14hp
    $349.00

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

    In Stock Available immediately!
  25. ES-6 mk2 CV to Lightpipe Interface
    Expert Sleepers ES-6 mk2 CV to Lightpipe Interface 4hp
    $160.00

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

    In Stock Available immediately!
  27. Befaco Kickall
    Befaco Kickall Analog Kick Generator 6hp
    • Sale
    $239.99 $209.99
    In Stock Available immediately!
  28. Expert Sleepers Persephone Analog JFET VCA
    Expert Sleepers Persephone Analog JFET VCA 8hp
    • Sale
    $189.00 $165.38
    In Stock Available immediately!
  29. Befaco MEX Muxlicer Trigger Expander
    Befaco MEX Muxlicer Trigger Expander 4hp
    • Sale
    $95.00 $83.13
    In Stock Available immediately!
  30. Befaco Inamp Two-Channel Preamp
    Befaco Inamp Two-Channel Preamp 4hp
    • Sale
    $125.00 $109.38
    In Stock Available immediately!
  31. Befaco M2.5 Knurlies Eurorack Screws
    Befaco M2.5 Knurlies Eurorack Screws
    As low as $21.88
    Multiple Options Make a selection for stock info
  32. Expert Sleepers Lorelei Oscillator
    Expert Sleepers Lorelei Analog Oscillator 8hp
    • Sale
    $189.00 $165.38
    In Stock Available immediately!
  33. Burst Pingable Trigger Generator module, front view
    Befaco Burst Pingable Trigger Generator 8hp
    • Sale
    $189.99 $166.24
    In Stock Available immediately!
  34. Befaco Spring Reverb
    Befaco Spring Reverb 8hp
    $299.00

    Out of Stock Reserve your order today!
  35. Befaco Morphader Voltage-Controlled Crossfader
    Befaco Morphader Voltage-Controlled Crossfader 12hp
    $259.99

    In Stock Available immediately!
  36. VC ADSR Envelope Generator
    Befaco VC ADSR Envelope Generator 8hp
    $175.00

    In Stock Available immediately!
  37. General CV MIDI-Based Sound Source
    Expert Sleepers General CV MIDI-Based Sound Source 12hp
    $349.00

    In Stock Available immediately!
  38. Expert Sleepers Beatrix Phaser
    Expert Sleepers Beatrix Analog Phaser 8hp
    • Sale
    $189.00 $165.38
    In Stock Available immediately!
  39. Befaco Rampage
    Befaco Rampage Dual Slope Generator 18hp
    • Sale
    $339.00 $296.63
    In Stock Available immediately!
  40. Befaco Crush Delay V3
    Befaco Crush Delay V3 Glitch Echo 11hp
    $279.00

    Out of Stock Reserve your order today!
  41. Expert Sleepers FHX-8GT Gate Expander for FH-2 Factotum
    Expert Sleepers FHX-8GT Gate Expander for FH-2 4hp
    $99.00

    In Stock Available immediately!
  42. Sonocurrent M T2D Dual Triode Distortion
    Sonocurrent M T2D Dual Triode Distortion 18hp
    $375.00

    Out of Stock Reserve your order today!
  43. Befaco Dual Attenuverter
    Befaco Dual Attenuverter 5hp
    $115.00

    In Stock Available immediately!
  44. ES-5 mk3 Expander for ES-3
    Expert Sleepers ES-5 mk3 Expander for ES-3 4hp
    • Sale
    $125.00 $109.38
    In Stock Available immediately!
  45. Befaco A*B+C
    Befaco A*B+C Voltage Processor 6hp
    $165.00

    Out of Stock Reserve your order today!
  46. Expert Sleepers Ivo Low Pass Filter
    Expert Sleepers Ivo Analog Low Pass Filter 8hp
    • Sale
    $189.00 $165.38
    In Stock Available immediately!
  47. Befaco Chopping Kinky
    Befaco Chopping Kinky Wavefolder 8hp
    • Sale
    $225.00 $196.88
    In Stock Available immediately!

1-48 of 74 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.