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

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  3. ES-8 USB Audio Interface
    Expert Sleepers ES-8 USB Audio Interface 8hp
    $459.00

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  4. Mystic Circuits IDUM Gate Processor
    Mystic Circuits IDUM Gate Processor 10hp
    $295.00

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

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

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

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

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  9. Expert Sleepers FHX-8CV FH-2 Factotum Expander
    Expert Sleepers FHX-8CV FH-2 Expander 4hp
    $145.00

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  10. Expert Sleepers Otterley Multi-LFO
    Expert Sleepers Otterley Multi-LFO 8hp
    • NEW
    $199.00

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

    In Stock Available immediately!
  12. ES-5 mk3 Expander for ES-3
    Expert Sleepers ES-5 mk3 Expander for ES-3 4hp
    $125.00

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  13. Mystic Circuits Ana Analog Logic Module
    Mystic Circuits Ana Analog Logic 6hp
    $180.00

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

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

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  16. Expert Sleepers Lorelei Oscillator
    Expert Sleepers Lorelei Analog Oscillator 8hp
    $189.00

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

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  18. Expert Sleepers Tiny MIDI Breakout Expander
    Expert Sleepers Tiny MIDI Breakout Expander 2hp
    $55.00

    In Stock Available immediately!
  19. Expert Sleepers MIDI Breakout Expander
    Expert Sleepers MIDI Breakout Expander 4hp
    $50.00

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  20. Expert Sleepers Pandora
    Expert Sleepers Pandora Analog Bandpass Filter + Distortion 8hp
    $199.00

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  21. Expert Sleepers CVM-8
    Expert Sleepers CVM-8 CV to MIDI + I2C Converter 4hp
    $225.00

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

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

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  24. Expert Sleepers FHX-8GT Gate Expander for FH-2 Factotum
    Expert Sleepers FHX-8GT Gate Expander for FH-2 4hp
    $99.00

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

    In Stock Available immediately!
  26. Expert Sleepers Persephone Analog JFET VCA
    Expert Sleepers Persephone Analog JFET VCA 8hp
    $189.00

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  27. Tonestar 2600 Full Synth Voice
    Studio Electronics Tonestar 2600 Full Synth Voice 32hp
    $639.00

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  28. ESX-8CV Mk2 Expansion
    Expert Sleepers ESX-8CV Mk2 Expansion 4hp
    $175.00

    In Stock Available immediately!
  29. Mystic Circuits 3DVCA VCA + Mixer + Panner
    Mystic Circuits 3DVCA VCA + Mixer + Panner 6hp
    $225.00

    In Stock Available immediately!
  30. Expert Sleepers ES-7 mk2
    Expert Sleepers ES-7 CV Input Expander 4hp
    $99.00

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  31. Expert Sleepers ESX-8GT mk3 Gate Expansion front view
    Expert Sleepers ESX-8GT mk3 Gate Expansion 4hp
    $75.00

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  32. Tonestar 8106 Filter
    Studio Electronics Tonestar 8106 Filter 12hp
    $299.00

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  33. ESX-8MD MIDI & DINsync Expansion
    Expert Sleepers ESX-8MD MIDI & DINsync Expansion 10hp
    $160.00

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  34. Expert Sleepers Cicely Octave Fuzz
    Expert Sleepers Cicely Octave Fuzz 8hp
    $189.00

    In Stock Available immediately!
  35. Expert Sleepers Amelia ADBR Envelope Generator
    Expert Sleepers Amelia Analog ADBR Envelope Generator 8hp
    $185.00

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  36. Mystic Circuits Leaves Tree Expander
    Mystic Circuits Leaves Tree Expander 8hp
    $180.00

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  37. Boomstar 5089 Filter
    Studio Electronics Boomstar 5089 Filter 12hp
    $299.00

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  38. SEM Multi-Mode Filter
    Studio Electronics SEM Multi-Mode Filter 12hp
    $299.00

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  39. Expert Sleepers Aloysius
    Expert Sleepers Aloysius AHDW Envelope Generator 8hp
    $185.00

    In Stock Available immediately!
  40. Mystic Circuits 0HP Blinkus
    Mystic Circuits 0HP Blinkus Ring Modulator / LED Cluster
    $28.00

    In Stock Available immediately!
  41. Charcot Circles Sequencer
    Studio Electronics Charcot Circles Sequencer 26hp
    $249.00

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  42. Slim O Oscillator
    Studio Electronics Slim O Oscillator 8hp
    $199.00

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  43. Expert Sleepers Ivo Low Pass Filter
    Expert Sleepers Ivo Analog Low Pass Filter 8hp
    $189.00

    In Stock Available immediately!
  44. General CV MIDI-Based Sound Source
    Expert Sleepers General CV MIDI-Based Sound Source 12hp
    • STAFF PICK
    $349.00

    In Stock Available immediately!
  45. Mystic Circuits 0HP 0ttenuator
    Mystic Circuits 0HP 0ttenuator
    $28.00

    In Stock Available immediately!
  46. Mystic Circuits 0HP Vactrol LPG
    Mystic Circuits 0HP Vactrol LPG
    $36.00

    In Stock Available immediately!
  47. Expert Sleepers Beatrix Phaser
    Expert Sleepers Beatrix Analog Phaser 8hp
    $189.00

    In Stock Available immediately!

1-48 of 65 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.