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

    In Stock Available immediately!
  4. Eventide Misha Interval-Based Instrument
    Eventide Misha Interval-Based Instrument 28hp
    $399.00

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

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

    Backorder Reserve your order today!
  7. ES-3 MK4 Lightpipe to CV Interface
    Expert Sleepers ES-3 MK4 Lightpipe to CV Interface 8hp
    $209.00

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

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

    Preorder New release—reserve yours today!
  10. Expert Sleepers Little Mikey Preamp
    Expert Sleepers Little Mikey Preamp 8hp
    $175.00

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

    Backorder Reserve your order today!
  12. Expert Sleepers Lorelei Oscillator
    Expert Sleepers Lorelei Analog Oscillator 8hp
    $189.00

    Backorder Reserve your order today!
  13. Expert Sleepers Tiny MIDI Breakout Expander
    Expert Sleepers Tiny MIDI Breakout Expander 2hp
    $55.00

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

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

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

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

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

    In Stock Available immediately!
  19. 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!
  20. Transient Modules 7J Joystick Controller
    Transient Modules 7J Joystick Controller 8hp
    $174.99

    Backorder Reserve your order today!
  21. Expert Sleepers Persephone Analog JFET VCA
    Expert Sleepers Persephone Analog JFET VCA 8hp
    $189.00

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

    Backorder Reserve your order today!
  23. Expert Sleepers ESX-8GT mk3 Gate Expansion front view
    Expert Sleepers ESX-8GT mk3 Gate Expansion 4hp
    $75.00

    Backorder Reserve your order today!
  24. ESX-8MD MIDI & DINsync Expansion
    Expert Sleepers ESX-8MD MIDI & DINsync Expansion 10hp
    $160.00

    Backorder Reserve your order today!
  25. Noise Lab Prime Mover Analog VCO
    Noise Lab Prime Mover Analog VCO 16hp
    $375.00

    In Stock Available immediately!
  26. Transient Modules u4R 1U Quad Random Source
    Transient Modules u4R 1U Quad Random Source 10hp
    $120.00

    Backorder Reserve your order today!
  27. The 4R from Transient Modules is a small yet powerful and user-friendly random voltage source
    Transient Modules 4R Quad Random Voltage Generator 2hp
    $120.00

    Backorder Reserve your order today!
  28. Transient Modules u1P Bernoulli Gate
    Transient Modules u1P Bernoulli Gate 10hp
    $99.00

    In Stock Available immediately!
  29. Expert Sleepers Cicely Octave Fuzz
    Expert Sleepers Cicely Octave Fuzz 8hp
    $189.00

    In Stock Available immediately!
  30. Transient Modules u3A Triple Attenuverter - 1U
    Transient Modules u3A Triple Attenuverter - 1U 18hp
    $75.00

    In Stock Available immediately!
  31. Expert Sleepers Ivo Low Pass Filter
    Expert Sleepers Ivo Analog Low Pass Filter 8hp
    $189.00

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

    In Stock Available immediately!
  33. Expert Sleepers Aloysius
    Expert Sleepers Aloysius AHDW Envelope Generator 8hp
    $185.00

    In Stock Available immediately!
  34. Transient Modules u2X Buffered Mult - 1U
    Transient Modules u2X Buffered Mult - 1U 12hp
    $45.00

    Backorder Reserve your order today!
  35. General CV MIDI-Based Sound Source
    Expert Sleepers General CV MIDI-Based Sound Source 12hp
    • STAFF PICK
    $349.00

    In Stock Available immediately!
  36. 8S 8 Step Sequencer
    Transient Modules 8S 8 Step Sequencer 8hp
    $160.00

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

    In Stock Available immediately!
  38. Expert Sleepers TOS-15 ADAT Patch Cable - 15cm
    Expert Sleepers TOS-15 ADAT Patch Cable - 15cm
    $6.99

    Backorder Reserve your order today!
  39. ES-40 SPDIF Interface
    Expert Sleepers ES-40 SPDIF Interface 6hp
    $125.00

    Backorder Reserve your order today!
  40. 1F is a renowned friend of sequencers everywhere. Built for a eurorack environment, this voltage controlled switch is perfect for imparting some random flavor on linear or non-linear sequences.
    Transient Modules 1F Voltage Controlled Switch 4hp
    $105.00

    Backorder Reserve your order today!
  41. Transient Modules 2M Dual Mixer
    Transient Modules 2M Dual Mixer 6hp
    $140.00

    In Stock Available immediately!
  42. Save $15 Expert Sleepers Persephone Analog JFET VCA
    Expert Sleepers Persephone Analog JFET VCA 8hp
    • DEMO
    • Sale
    $189.00 $174.00
    In Stock Available immediately!
  43. Save $25 Expert Sleepers Amelia ADBR Envelope Generator
    Expert Sleepers Amelia Analog ADBR Envelope Generator 8hp
    • DEMO
    • Sale
    $185.00 $160.00
    In Stock Available immediately!
  44. Save $50 Expert Sleepers General CV
    Expert Sleepers General CV MIDI-Based Sound Source 12hp
    • DEMO
    • Sale
    $349.00 $299.00
    In Stock Available immediately!
  45. Save $40 Transient Modules 2M Dual Mixer
    Transient Modules 2M Dual Mixer 6hp
    • DEMO
    • Sale
    $140.00 $100.00
    In Stock Available immediately!
  46. Eventide EuroDDL Delay [USED]
    Eventide EuroDDL Delay 16hp
    • USED
    $349.00

    In Stock Available immediately!
  47. Expert Sleepers General CV MIDI-Based Sound Source [USED]
    Expert Sleepers General CV MIDI-Based Sound Source 12hp
    • USED
    $299.00

    In Stock Available immediately!

1-48 of 49 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.