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. Tiptop Audio Buchla 207t Mixer + Preamplifier
    Tiptop Audio Buchla 207t Mixer + Preamplifier 28hp
    $249.00

    In Stock Available immediately!
  3. ES-8 USB Audio Interface
    Expert Sleepers ES-8 USB Audio Interface 8hp
    $459.00

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  4. ES-8 USB Audio Interface (Bitwig Edition)
    Expert Sleepers ES-8 USB Audio Interface (Bitwig Edition) 8hp
    $459.00

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  5. Befaco I4 Instrument Interface
    Befaco I4 Instrument Interface 8hp
    $239.99

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  6. Joranalogue Receive 2 External Input
    Joranalogue Receive 2 External Input 6hp
    $214.99

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  7. Intellijel Designs Stereo Line Out 1U Output
    Intellijel Designs Stereo Line Out 1U Output 8hp
    $69.00

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  8. Befaco Output v3 module, front view
    Befaco Output v3 4hp
    $149.99

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  9. Boredbrain Injectr Audio Input + Cab Simulator
    Boredbrain Music Injectr Audio Input + Cab Simulator 11hp
    $249.00

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  10. Instruo Làrachd
    Instruo Làrachd External Input + Envelope Follower 8hp
    $339.00

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  11. Intellijel Designs Outs Output Interface
    Intellijel Designs Outs Output Interface 6hp
    $149.00

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

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  13. Intellijel Audio I/O
    Intellijel Designs Audio I/O 10hp
    $260.00

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  14. Make Noise XOH Output Interface
    Make Noise XOH Output Interface 6hp
    $110.00

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

    In Stock Available immediately!
  16. ADDAC 200 PI Pedal Integrator Black
    ADDAC System ADDAC200PI Pedal Integrator 4hp
    $115.00

    In Stock Available immediately!
  17. Intellijel Designs Stereo Line In 1U
    Intellijel Designs Stereo Line In 1U 12hp
    $69.00

    In Stock Available immediately!
  18. Instruo Cuïr
    Instruo Cuïr Output Module 4hp
    $259.00

    In Stock Available immediately!
  19. Joranalogue Transmit 2 Stereo Output
    Joranalogue Transmit 2 Stereo Output 6hp
    $219.99

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  20. Boredbrain Music Monitr Stereo Output Module
    Boredbrain Music Monitr Stereo Output Module 10hp
    $269.00

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  21. Roland System-500 531 Mixer module, front view
    Roland SYS-531 6-CH Mixer 20hp
    $429.99

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

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

    In Stock Available immediately!
  24. Sewastopol II Audio Port and Voltage Extractor
    XAOC Devices Sewastopol II Audio Port and Voltage Extractor 10hp
    $299.00

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  25. Boredbrain Xport 6-Channel Line Output Module
    Boredbrain Music Xport 6-Channel Line Output Module 6hp
    $149.00

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  26. Befaco AC/DC 4x4 USB Audio Interface Module
    Befaco AC/DC 4x4 USB Audio Interface Module 6hp
    $349.99

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  27. Pico Input
    Erica Synths Pico Input 3hp
    $79.00

    In Stock Available immediately!
  28. Headphones 1U
    Intellijel Designs Headphones 1U 10hp
    $69.00

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  29. Boredbrain INTRFX V2
    Boredbrain Music INTRFX v2 Eurorack to Pedal Interface
    $219.00

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  30. Pedal I/O 1U
    Intellijel Designs Pedal I/O 1U 16hp
    $99.00

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  31. Black Output Module V2
    Erica Synths Black Output Module V2 14hp
    $319.00

    In Stock Available immediately!
  32. BASTL Ciao!! Quad Line Output
    BASTL Instruments Ciao!! Quad Line Output 5hp
    $224.00

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

    In Stock Available immediately!
  34. Doepfer A-119
    Doepfer A-119 External Input / Envelope Follower 8hp
    As low as $86.00
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  35. Strymon AA.1 Amplifier Attenuator, front view
    Strymon AA.1 Amplifier Attenuator 4hp
    $129.00

    In Stock Available immediately!
  36. Intellijel Designs Stomp
    Intellijel Designs Stomp Effects Pedal Send + Return 8hp
    $199.00

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  37. After Later Audio Auris
    After Later Audio Auris Contact Microphone + External Input 4hp
    $89.00

    In Stock Available immediately!
  38. Future Sound Systems TG5 Gristleizer Preamp
    Future Sound Systems TG5 Gristleizer Preamp 14hp
    $359.00

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

    In Stock Available immediately!
  40. Pico Out
    Erica Synths Pico Out 3hp
    $99.00

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  41. Erica Pico EF Preamp and Envelope Follower
    Erica Synths Pico EF Preamp and Envelope Follower 3hp
    $119.00

    In Stock Available immediately!
  42. Befaco 1U STAmp External Input Module
    Befaco 1U ST Amp External Input Module 10hp
    $99.99

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  43. Boredbrain Music Xchangr Stereo Send/Receive
    Boredbrain Music Xchangr Stereo Send/Receive 8hp
    $129.00

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

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  45. 4MS Listen Four Quarters Mixer / Output
    4MS Listen Four Quarters Mixer / Output 12hp
    $209.00

    In Stock Available immediately!

1-48 of 115 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.