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. IME Kermit MKIII Quad Modulation Source
    Industrial Music Electronics Kermit MKIII Quad Modulation Source 12hp
    $475.00

    Backorder Reserve your order today!
  4. IME Bionic Lester MKIII Digital Filter
    Industrial Music Electronics Bionic Lester MKIII Digital Filter 15hp
    $475.00

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

    In Stock Available immediately!
  6. Knobula Pianophonic
    Knobula Pianophonic 8-Voice Multi-Oscillator Wavetable Synthesizer 12hp
    $449.99

    Backorder Reserve your order today!
  7. The Harvestman Hertz Donut mk3 Digital FM Oscillator
    Industrial Music Electronics Hertz Donut MKIII Digital FM Oscillator 17hp
    $525.00

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  8. Knobula Poly Cinematic Oscillator
    Knobula Poly Cinematic Oscillator 12hp
    $399.99

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

    In Stock Available immediately!
  10. 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!
  11. 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
  12. ALM PPexp1 Pamela's Pro Workout Expander
    ALM Busy Circuits PPexp1 Pamela's Pro Workout Expander 4hp
    $149.00

    In Stock Available immediately!
  13. Schlappi 100 Grit Touch-Controlled Distortion
    Schlappi Engineering 100 Grit Touch-Controlled Distortion 14hp
    As low as $260.00
    Multiple Options Make a selection for stock info
  14. ALM Busy Circuits ASQ-1 Sequencer
    ALM Busy Circuits ASQ-1 Sequencer 32hp
    $349.99

    In Stock Available immediately!
  15. Schlappi Engineering Three Body
    Schlappi Engineering Three Body Triple FPGA Oscillator 30hp
    As low as $550.00
    Multiple Options Make a selection for stock info
  16. ALM Busy Circuits Pip Slope MkII
    ALM Busy Circuits Pip Slope Mk II Envelope / LFO 4hp
    $129.99

    In Stock Available immediately!
  17. ALM Busy Circuits MCO Morphing Wavetable Oscillator
    ALM Busy Circuits MCO Morphing Wavetable Oscillator 6hp
    $169.99

    In Stock Available immediately!
  18. ALM Busy Circuits Quaid Megaslope Complex Function Generator
    ALM Busy Circuits Quaid Megaslope Complex Function Generator 19hp
    $299.99

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

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

    In Stock Available immediately!
  21. Knobula Chord Pilot
    Knobula Chord Pilot MIDI Chord Generator + Arpeggiator 12hp
    $399.99

    In Stock Available immediately!
  22. 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
  23. Tangle Quartet Quad VCA Mixer
    ALM Busy Circuits Tangle Quartet Quad VCA Mixer 8hp
    $199.00

    In Stock Available immediately!
  24. Knobula Kickain Kick Drum Voice
    Knobula Kickain Kick Drum Voice 12hp
    $399.99

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

    Backorder Reserve your order today!
  26. ALM Busy Circuits mmMIDI MIDI to CV Converter
    ALM Busy Circuits mmMIDI MIDI to CV Converter 4hp
    $149.99

    In Stock Available immediately!
  27. Akemie's Taiko FM Drum Voice
    ALM Busy Circuits Akemie's Taiko FM Drum Voice 18hp
    $349.99

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

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

    In Stock Available immediately!
  30. Rides in the Storm QAM Quad Active Multiple
    Rides in the Storm QAM Quad Active Multiple 4hp
    $69.99

    In Stock Available immediately!
  31. Schlappi Engineering Nibbler
    Schlappi Engineering Nibbler CMOS Four-Bit Digital Accumulator 12hp
    As low as $240.00
    Multiple Options Make a selection for stock info
  32. Mum M8 S950 Lowpass Filter
    ALM Busy Circuits Mum M8 S950 Lowpass Filter 8hp
    $239.00

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

    In Stock Available immediately!
  34. O/A/x2 Dual Offset Attenuverter
    ALM Busy Circuits O/A/x2 Dual Offset Attenuverter 4hp
    $100.00

    In Stock Available immediately!
  35. ALM MCFx2 Dual State-Variable Filter
    ALM Busy Circuits MCFx2 Dual State-Variable Filter 14hp
    $289.99

    In Stock Available immediately!
  36. ALM Busy Circuits Case Mount Screws M3 / 6mm
    ALM Busy Circuits Case Mount Screws M3 / 6mm
    $29.99

    In Stock Available immediately!
  37. Schlappi Engineering Angle Grinder
    Schlappi Engineering Angle Grinder Quadrature Oscillator + Waveshaper 18hp
    As low as $310.00
    Multiple Options Make a selection for stock info
  38. Schlappi Engineering Boundary
    Schlappi Engineering Boundary Cycling Slew and Four-Quadrant Multipler 12hp
    As low as $219.00
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  39. ALM TAZM-O Analog Through-Zero Oscillator
    ALM Busy Circuits TAZM-O Analog Through-Zero Oscillator 12hp
    $379.00

    In Stock Available immediately!
  40. Beast's Chalkboard Octave Switch
    ALM Busy Circuits Beast's Chalkboard Octave Switch 6hp
    $139.99

    In Stock Available immediately!
  41. ALM PPexp2 Pamela's Pro Workout Expander
    ALM Busy Circuits PPexp2 Pamela's Pro Workout Expander 2hp
    $99.00

    In Stock Available immediately!
  42. Rides in the Storm FEG Loopable ADSR EG
    Rides in the Storm FEG Loopable ADSR EG 4hp
    $69.99

    Backorder Reserve your order today!
  43. S.B.G. Pedal Interface
    ALM Busy Circuits S.B.G. Pedal Interface 4hp
    $139.99

    In Stock Available immediately!
  44. SID GUTS Deluxe C64 Voice
    ALM Busy Circuits SID GUTS Deluxe C64 Voice 19hp
    $399.99

    Backorder Reserve your order today!
  45. Rides in the Storm CON - Normal Gain
    Rides in the Storm CON Quad Gain Converter 2hp
    $69.99

    In Stock Available immediately!

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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.