Eurorack + Modular Synths

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  1. Random*Source Serge VCFQ Variable Q VCF VCFX Eurorack
    Random Source Serge Variable Q Filter (VCFQ) 14hp
    $339.99

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  2. Random Source Serge Resonant EQ
    Random Source Serge Resonant EQ (RESEQ) 18hp
    $449.99

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  3. Klavis Twin Waves MkII Dual Digital Oscillator
    Klavis Twin Waves MkII Dual Digital Oscillator 8hp
    As low as $282.00
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  4. Serge New Timbral Oscillator (NTO)
    Random Source Serge New Timbral Oscillator (NTO) 18hp
    $549.99

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

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

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  7. Random Source Serge Active Pro / Noise / CV-Pro
    Random Source Serge Active Pro / Noise / CV-Pro 18hp
    $449.99

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  8. Klavis Grainity Analog Granular VCF
    Klavis Grainity Analog Granular VCF 10hp
    As low as $324.00
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  9. Klavis CalTrans Calibrator + Transposer
    Klavis CalTrans Calibrator + Transposer 6hp
    $198.00

    In Stock Available immediately!
  10. Random Source Serge Ring Modulator
    Random Source Serge Ring Modulator 10hp
    $309.99

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  11. Serge Divide by N Comparator (NCOM)
    Random Source Serge Divide by N Comparator (NCOM) 10hp
    $269.99

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

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  13. Random Source Serge Variable Bandwidth Filter
    Random Source Serge Variable Bandwidth Filter (VCF2) 18hp
    $399.99

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  14. Random Source Serge GTS Slope Generator III
    Random Source Serge GTS Slope Generator III 26hp
    • NEW
    $499.99

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  15. Klavis Quadigy Quad Envelope
    Klavis Quadigy Quad Envelope 14hp
    As low as $324.00
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  16. Random Source Serge Dual Universal Slope Generator DUSG Eurorack
    Random Source Serge Dual Universal Slope Generator MK2 (DSG) 26hp
    $479.99

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  17. Random Source Serge SSG Smooth & Stepped Function Generator Eurorack Module
    Random Source Serge Smooth & Stepped Generator (SSG) 18hp
    $359.99

    In Stock Available immediately!
  18. Random Source Haible VC Poly Resonator
    Random Source Haible VC Poly Resonator 18hp
    $449.99

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  19. Random Source Serge Extended ADSR
    Random Source Serge Extended ADSR 18hp
    $329.99

    In Stock Available immediately!
  20. Klavis Two Bits Dual-Channel Logic
    Klavis Two Bits Dual-Channel Logic 5hp
    $156.00

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  21. Serge Triple+ Waveshaper (TWS+)
    Random Source Serge Triple+ Waveshaper (TWS+) 18hp
    $299.99

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  22. Random Source Serge Variable Slope Filter
    Random Source Serge Variable Slope Filter (VCFS) 14hp
    $339.99

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  23. Serge Equal Power Stereo Mixer (SM)
    Random Source Serge Equal Power Stereo Mixer (SM) 18hp
    $489.99

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  24. Random Source Haible Living VCOs
    Random Source Haible Living VCOs 42hp
    $859.99

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

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  26. Noise Lab Prime Mover Analog VCO
    Noise Lab Prime Mover Analog VCO 16hp
    $375.00

    In Stock Available immediately!
  27. Klavis Tweakers Dual CV Processor
    Klavis Tweakers Dual CV Processor 3hp
    As low as $82.00
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  28. Serge Wave Multipliers (VCM)
    Random Source Serge Wave Multipliers (VCM) 18hp
    $359.99

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  29. Tonic Sequencer
    Rebel Technology Tonic Sequencer 6hp
    $160.00

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  30. Klavis Mixwitch Mixer Switcher Eurorack Module
    Klavis Mixwitch Mixer + Switch 8hp
    $156.00

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  31. Klavis Flexshaper
    Klavis Flexshaper Tracking Generator + Waveshaper 6hp
    $156.00

    In Stock Available immediately!
  32. Stoicheia Dual Euclidean Sequencer
    Rebel Technology Stoicheia Dual Euclidean Sequencer 10hp
    $220.00

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  33. Logica XT Gater Logic Module
    Klavis Logica XT Gater Logic Module 5hp
    $145.00

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  34. Rebel Technology CLK Tripartite Synchronized Clock Generator module, front view
    Rebel Technology CLK Tripartite Synchronized Clock Generator 4hp
    $118.00

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  35. Chronos MK II
    Rebel Technology Chronos MK II 6hp
    $175.00

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  36. Klasmata Sequencer
    Rebel Technology Klasmata Sequencer 8hp
    $265.00

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  37. Logoi Clock Divider / Counter / Delay
    Rebel Technology Logoi Clock Divider / Counter / Delay 10hp
    $265.00

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  38. Phoreo Triple Function Processor
    Rebel Technology Phoreo Triple Function Processor 10hp
    $220.00

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  39. Klavis 2x4 Multiple
    Klavis 2x4 Multiple 3hp
    $34.00

    In Stock Available immediately!
  40. Random Source Pont-Neuf Format Converter
    Random Source Serge Pont-Neuf Format Converter 10hp
    $99.99

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  41. Klavis NoDrain Negative to +5V Converter
    Klavis NoDrain Negative to +5V Converter
    $26.00

    In Stock Available immediately!
  42. Mix 02 Stereo Mixer
    Rebel Technology Mix 02 Stereo Mixer 10hp
    $139.00

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  43. Mix 01 Matrix Mixer
    Rebel Technology Mix 01 Matrix Mixer 10hp
    $125.00

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  44. Mix 03 4CH Mixer
    Rebel Technology Mix 03 4CH Mixer 6hp
    $109.00

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1-48 of 56 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.