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Eurorack + Modular Synths

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  1. Save $80 Expert Sleepers ES-9
    Expert Sleepers ES-9 Eurorack Audio + CV Interface 16hp
    • Sale
    $635.00 $555.00
    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. Expert Sleepers FH-2, front view
    Expert Sleepers FH-2 Factotum USB MIDI Host + MIDI-CV 8hp
    $309.00

    In Stock Available immediately!
  5. Save $45 Random*Source Serge VCFQ Variable Q VCF VCFX Eurorack
    Random Source Serge Variable Q Filter (VCFQ) 14hp
    • Sale
    $339.99 $294.99
    In Stock Available immediately!
  6. Random Source Serge Resonant EQ
    Random Source Serge Resonant EQ (RESEQ) 18hp
    $449.99

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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. Save $20 Expert Sleepers FHX-8CV FH-2 Factotum Expander
    Expert Sleepers FHX-8CV FH-2 Expander 4hp
    • Sale
    $145.00 $125.00
    In Stock Available immediately!
  10. Expert Sleepers Otterley Multi-LFO
    Expert Sleepers Otterley Multi-LFO 8hp
    • NEW
    $199.00

    Preorder New release—reserve yours today!
  11. Serge New Timbral Oscillator (NTO)
    Random Source Serge New Timbral Oscillator (NTO) 18hp
    $549.99

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  12. Random Source Serge GTO
    Random Source Serge GTO Complex Multi-Function Module 18hp
    $399.99

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

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

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  15. Random Source Serge Precision VCO
    Random Source Serge Precision VCO Analog Oscillator (PCO) 14hp
    $389.99

    In Stock Available immediately!
  16. Save $60 Random Source Serge Active Pro / Noise / CV-Pro
    Random Source Serge Active Pro / Noise / CV-Pro 18hp
    • Sale
    $449.99 $389.99
    In Stock Available immediately!
  17. Random Source Serge Ring Modulator
    Random Source Serge Ring Modulator 10hp
    $309.99

    In Stock Available immediately!
  18. Serge Divide by N Comparator (NCOM)
    Random Source Serge Divide by N Comparator (NCOM) 10hp
    $269.99

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  19. Random Source Serge SEQ 8 XL Sequencer Programmer
    Random Source SEQ8 XL Serge Sequencer + Programmer 42hp
    $589.99

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

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

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

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  23. Save $50 Random Source Serge Variable Bandwidth Filter
    Random Source Serge Variable Bandwidth Filter (VCF2) 18hp
    • Sale
    $399.99 $349.99
    In Stock Available immediately!
  24. 12% off Expert Sleepers MIDI Breakout Expander
    Expert Sleepers MIDI Breakout Expander 4hp
    • Sale
    $50.00 $43.75
    In Stock Available immediately!
  25. Expert Sleepers Pandora
    Expert Sleepers Pandora Analog Bandpass Filter + Distortion 8hp
    $199.00

    In Stock Available immediately!
  26. Random Source Serge GTS Slope Generator III
    Random Source Serge GTS Slope Generator III 26hp
    • NEW
    $499.99

    In Stock Available immediately!
  27. Random Source Serge Dual Universal Slope Generator DUSG Eurorack
    Random Source Serge Dual Universal Slope Generator MK2 (DSG) 26hp
    $479.99

    In Stock Available immediately!
  28. Save $30 Expert Sleepers CVM-8
    Expert Sleepers CVM-8 CV to MIDI + I2C Converter 4hp
    • Sale
    $225.00 $195.00
    In Stock Available immediately!
  29. ESX-8CV Mk2 Expansion
    Expert Sleepers ESX-8CV Mk2 Expansion 4hp
    $175.00

    In Stock Available immediately!
  30. 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!
  31. Save $45 Random Source Serge SSG Smooth & Stepped Function Generator Eurorack Module
    Random Source Serge Smooth & Stepped Generator (SSG) 18hp
    • Sale
    $359.99 $314.99
    In Stock Available immediately!
  32. Random Source Haible VC Poly Resonator
    Random Source Haible VC Poly Resonator 18hp
    $449.99

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

    In Stock Available immediately!
  34. Serge Triple+ Waveshaper (TWS+)
    Random Source Serge Triple+ Waveshaper (TWS+) 18hp
    $299.99

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

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

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  37. Save $45 Random Source Serge Variable Slope Filter
    Random Source Serge Variable Slope Filter (VCFS) 14hp
    • Sale
    $339.99 $294.99
    In Stock Available immediately!
  38. Save $60 Random Source Serge Extended ADSR
    Random Source Serge Extended ADSR 18hp
    • Sale
    $329.99 $269.99
    In Stock Available immediately!
  39. Save $65 Serge Equal Power Stereo Mixer (SM)
    Random Source Serge Equal Power Stereo Mixer (SM) 18hp
    • Sale
    $489.99 $424.99
    In Stock Available immediately!
  40. Random Source Haible Living VCOs
    Random Source Haible Living VCOs 42hp
    $859.99

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

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  42. Random Source Haible TAU Phaser
    Random Source Haible TAU Phaser 18hp
    $399.99

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  43. Save $50 Noise Lab Prime Mover Analog VCO
    Noise Lab Prime Mover Analog VCO 16hp
    • Sale
    $375.00 $325.00
    In Stock Available immediately!

1-48 of 66 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.