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Eurorack + Modular Synths

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  1. ALM Cizzle Dual Phase Distortion VCO Eurorack Module
    ALM Busy Circuits CIZZLE Phase Distortion VCO 16hp
    • NEW
    $349.99

    Preorder New release—reserve yours today!
  2. ALM MFX Stereo Multi-Effects Processor
    ALM Busy Circuits MFX Stereo Multi-Effects Processor 6hp
    $299.00

    In Stock Available immediately!
  3. ALM Busy Circuits Squid Salmpler
    ALM Busy Circuits Squid Salmple 21hp
    $499.00

    In Stock Available immediately!
  4. ALM Busy Circuits Mega Milton Compact Utilities
    ALM Busy Circuits Mega Milton Compact Utilities 8hp
    $199.99

    In Stock Available immediately!
  5. ALM Mega-Tang Stereo Mixer + 4-Channel VCA
    ALM Busy Circuits Mega-Tang Stereo Mixer + 4-Channel VCA 16hp
    $299.99

    In Stock Available immediately!
  6. Doepfer A-100 PMB Monster Base Eurorack Case PSU3
    Doepfer A-100 PMBsw Monster Base - 6U
    $1,110.00

    In Stock Available immediately!
  7. 12% off Doepfer A-111-4 Quad Precision VCO
    Doepfer A-111-4 Quad Precision VCO 18hp
    • Sale
    As low as $420.00
    Multiple Options Make a selection for stock info
  8. ALM ALM-CS 6U Powered Eurorack Case
    ALM Busy Circuits ALM-CS 6U Powered Eurorack Case
    As low as $349.99
    Multiple Options Make a selection for stock info
  9. Save $20 ALM PPexp1 Pamela's Pro Workout Expander
    ALM Busy Circuits PPexp1 Pamela's Pro Workout Expander 4hp
    • Sale
    $149.00 $129.00
    In Stock Available immediately!
  10. Doepfer A-135-2 Quad VCA / Mixer
    Doepfer A-135-2 Quad VCA / Mixer 8hp
    As low as $119.99
    Multiple Options Make a selection for stock info
  11. A-124SE VCF5 Wasp Filter (Special Edition)
    Doepfer A-124SE VCF5 Wasp Filter (Special Edition) 8hp
    $105.00

    In Stock Available immediately!
  12. Doepfer A-100 LC9 Low Cost Case - 9U
    Doepfer A-100 LC9 Low Cost Case Eurorack Case - 9U
    As low as $435.00
    Multiple Options Make a selection for stock info
  13. Save $45 ALM Busy Circuits ASQ-1 Sequencer
    ALM Busy Circuits ASQ-1 Sequencer 32hp
    • Sale
    $349.99 $304.99
    In Stock Available immediately!
  14. A-100 PMS12 Monster Case - 12U
    Doepfer A-100 PMS12 Monster Case - 12U
    $1,849.00

    Backorder Reserve your order today!
  15. Doepfer A-100 P9 Eurorack Case 9U PSU3
    Doepfer A-100 P9 Eurorack Case - 9U
    $675.00

    In Stock Available immediately!
  16. ALM Busy Circuits Pip Slope MkII
    ALM Busy Circuits Pip Slope Mk II Envelope / LFO 4hp
    $129.99

    In Stock Available immediately!
  17. A-138m 4x4 Matrix Mixer
    Doepfer A-138m 4x4 Matrix Mixer 20hp
    $168.00

    In Stock Available immediately!
  18. Doepfer A-160-2 Clock / Trigger Divider II
    Doepfer A-160-2 Clock / Trigger Divider II 4hp
    As low as $119.00
    Multiple Options Make a selection for stock info
  19. Doepfer A-100 LMS9 Low Cost Monster Case - 9U
    Doepfer A-100 LMS9 Low Cost Monster Case Eurorack Case - 9U
    As low as $929.00
    Multiple Options Make a selection for stock info
  20. Save $20 A-180-9 Multicore (Pair)
    Doepfer A-180-9 Multicore (Pair) 4hp
    • Sale
    $124.99 $104.99
    In Stock Available immediately!
  21. 12% off Doepfer A-130-8 Octal Linear VCA
    Doepfer A-130-8 Octal Linear VCA 6hp
    • Sale
    $89.00 $77.88
    In Stock Available immediately!
  22. Save $25 ALM Busy Circuits MCO Morphing Wavetable Oscillator
    ALM Busy Circuits MCO Morphing Wavetable Oscillator 6hp
    • Sale
    $169.99 $144.99
    In Stock Available immediately!
  23. ALM Busy Circuits Quaid Megaslope Complex Function Generator
    ALM Busy Circuits Quaid Megaslope Complex Function Generator 19hp
    $299.99

    In Stock Available immediately!
  24. ALM ALM-CS 9U Powered Eurorack Case - 84HP
    ALM Busy Circuits ALM-CS 9U Powered Eurorack Case - 84HP
    $549.99

    In Stock Available immediately!
  25. A-100 PMS6 Monster Case - 6U
    Doepfer A-100 PMS6 Monster Case - 6U
    $1,099.00

    In Stock Available immediately!
  26. ALM Jumble Henge Stereo Spectral Mixer
    ALM Busy Circuits Jumble Henge Stereo Spectral Mixer 8hp
    $289.99

    In Stock Available immediately!
  27. Save $40 A-198 Trautonium Manual / Ribbon Controller
    Doepfer A-198 Trautonium Manual / Ribbon Controller 8hp
    • Sale
    $290.00 $250.00
    In Stock Available immediately!
  28. 15% off Doepfer A-140-2 Dual Mini ADSR
    Doepfer A-140-2 Dual Mini ADSR Envelope Generator 8hp
    • Sale
    As low as $147.00
    Multiple Options Make a selection for stock info
  29. 12% off Doepfer A-151 Quad Sequential Switch
    Doepfer A-151 Quad Sequential Switch 4hp
    • Sale
    As low as $63.88
    Multiple Options Make a selection for stock info
  30. ALM ALM-CS 3U Powered Eurorack Case
    ALM Busy Circuits ALM-CS 3U Powered Eurorack Case
    As low as $249.99
    Multiple Options Make a selection for stock info
  31. Doepfer A-100 LC6 Low Cost Case - 6U
    Doepfer A-100 LC6 Low Cost Case Eurorack Case - 6U
    As low as $375.00
    Multiple Options Make a selection for stock info
  32. Tangle Quartet Quad VCA Mixer
    ALM Busy Circuits Tangle Quartet Quad VCA Mixer 8hp
    $199.00

    In Stock Available immediately!
  33. Akemie's Castle Dual FM Oscillator
    ALM Busy Circuits Akemie's Castle Dual FM Oscillator 38hp
    $599.00

    Backorder Reserve your order today!
  34. Save $20 ALM Busy Circuits mmMIDI MIDI to CV Converter
    ALM Busy Circuits mmMIDI MIDI to CV Converter 4hp
    • Sale
    $149.99 $129.99
    In Stock Available immediately!
  35. Akemie's Taiko FM Drum Voice
    ALM Busy Circuits Akemie's Taiko FM Drum Voice 18hp
    $349.99

    Backorder Reserve your order today!
  36. ALM Busy Circuits MFD Stereo Crossfader
    ALM Busy Circuits MFD Stereo Crossfader 6hp
    $169.99

    In Stock Available immediately!
  37. Doepfer A-130-2 Dual Lin/Exp VCA - Slim Line
    Doepfer A-130-2 Dual Lin/Exp VCA (Slim Line) 4hp
    $99.00

    In Stock Available immediately!
  38. ALM Busy Circuits HPO Headphone Output Eurorack Module
    ALM Busy Circuits HPO Headphone Output 2hp
    $79.99

    In Stock Available immediately!
  39. Doepfer A-174-4 3D Joystick
    Doepfer A-174-4 3D Joystick 12hp
    As low as $189.00
    Multiple Options Make a selection for stock info
  40. Save $35 A-143-2 Quad ADSR
    Doepfer A-143-2 Quad ADSR 26hp
    • Sale
    $255.00 $220.00
    In Stock Available immediately!
  41. Doepfer A-100 LC1 Low Cost Case - 3U
    Doepfer A-100 LC1 Low Cost Case Eurorack Case - 3U
    As low as $148.00
    Multiple Options Make a selection for stock info
  42. Doepfer A-100 G6 Rackmountable Case 6U PSU3
    Doepfer A-100 G6 Rackmountable Case - 6U
    $530.00

    In Stock Available immediately!
  43. Mum M8 S950 Lowpass Filter
    ALM Busy Circuits Mum M8 S950 Lowpass Filter 8hp
    $239.00

    In Stock Available immediately!
  44. ALM Boss Bow Two Switch + Signal Router
    ALM Busy Circuits Boss Bow Two Switch + Signal Router 8hp
    $199.99

    In Stock Available immediately!
  45. Doepfer A-138p Performance Mixer Input
    Doepfer A-138p Performance Mixer Input 16hp
    As low as $139.99
    Multiple Options Make a selection for stock info
  46. O/A/x2 Dual Offset Attenuverter
    ALM Busy Circuits O/A/x2 Dual Offset Attenuverter 4hp
    $100.00

    In Stock Available immediately!

1-48 of 312 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.