Eurorack + Modular Synths

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  1. A-124SE VCF5 Wasp Filter (Special Edition)
    Doepfer A-124SE VCF5 Wasp Filter (Special Edition) 8hp
    $105.00

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

    In Stock Available immediately!
  3. A-196 Phase Locked Loop
    Doepfer A-196 Phase Locked Loop 8hp
    $92.00

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

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    Out of Stock

    We're awaiting our next batch of this item. Pre-order to reserve your place in line and we'll fulfill your order as soon as we receive our shipment
  5. A-106-5 -12dB SEM VCF
    Doepfer A-106-5 -12dB SEM VCF 8hp
    $115.00

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    Out of Stock

    We're awaiting our next batch of this item. Pre-order to reserve your place in line and we'll fulfill your order as soon as we receive our shipment
  6. Mum M8 S950 Lowpass Filter
    ALM Busy Circuits Mum M8 S950 Lowpass Filter 8hp
    $239.00

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    Out of Stock

    We're awaiting our next batch of this item. Pre-order to reserve your place in line and we'll fulfill your order as soon as we receive our shipment
  7. A-124 VCF5 Wasp Filter
    Doepfer A-124 VCF5 Wasp Filter 8hp
    $105.00

    In Stock Available immediately!
  8. Doepfer A-119
    Doepfer A-119 External Input / Envelope Follower 8hp
    As low as $86.00
    Multiple Options Make a selection for stock info
  9. S.B.G. Pedal Interface
    ALM Busy Circuits S.B.G. Pedal Interface 4hp
    $139.99

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  10. Doepfer A-121-3 Multimode VCF - Slim Line
    Doepfer A-121-3 Multimode VCF (Slim Line) 4hp
    $124.00

    In Stock Available immediately!
  11. VoicAs Multirover Multiband Stereo Overdrive
    VoicAs Multirover Multiband Stereo Overdrive 20hp
    $390.00

    In Stock Available immediately!
  12. A-136 Distortion Waveshaper
    Doepfer A-136 Distortion Waveshaper 8hp
    $80.00

    In Stock Available immediately!
  13. A-106-5SE 12dB SEM VCF (Special Edition)
    Doepfer A-106-5SE 12dB SEM VCF (Special Edition) 8hp
    $116.00

    In Stock Available immediately!
  14. Doepfer A-120 VCF1 24dB Low Pass Filter
    Doepfer A-120 VCF1 24dB Low Pass Filter 8hp
    As low as $130.00
    Multiple Options Make a selection for stock info
  15. Doepfer A-121s Stereo Multimode Filter
    Doepfer A-121s Stereo Multimode Filter 12hp
    As low as $260.00
    Multiple Options Make a selection for stock info
  16. A-189-1 VC Bit Modifier / Bit Cruncher
    Doepfer A-189-1 VC Bit Modifier / Bit Cruncher 8hp
    $128.00

    In Stock Available immediately!
  17. A-105-4 Quad Poly SSI VCF
    Doepfer A-105-4 Quad Poly SSI VCF 8hp
    $245.00

    In Stock Available immediately!
  18. A-106-1 X-Treme Filter
    Doepfer A-106-1 X-Treme Filter 14hp
    $149.00

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    We're awaiting our next batch of this item. Pre-order to reserve your place in line and we'll fulfill your order as soon as we receive our shipment
  19. A-137-2 Wave Multiplier II
    Doepfer A-137-2 Wave Multiplier II 14hp
    $99.00

    In Stock Available immediately!
  20. A-127 VC Triple Resonance Filter
    Doepfer A-127 VC Triple Resonance Filter 28hp
    $198.00

    In Stock Available immediately!
  21. A-108 is a voltage-controlled low-pass filter inspired by the classic Moog ladder filter.
    Doepfer A-108 48dB Filter 12hp
    $196.00

    In Stock Available immediately!
  22. Doepfer A-101-1 Vactrol Steiner Filter
    Doepfer A-101-1 Vactrol Steiner Filter 16hp
    As low as $169.00
    Multiple Options Make a selection for stock info
  23. Doepfer A-121-2 12dB Multimode Filter
    Doepfer A-121-2 12dB Multimode Filter 8hp
    As low as $138.00
    Multiple Options Make a selection for stock info
  24. A-139-2 Headphone Amplifier
    Doepfer A-139-2 Headphone Amplifier 6hp
    $68.00

    In Stock Available immediately!
  25. A-101-6 Opto FET Filter / Phaser
    Doepfer A-101-6 Opto FET Filter / Phaser 8hp
    $128.00

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  26. A-103 VCF6 18dB Low Pass Filter
    Doepfer A-103 VCF6 18dB Low Pass Filter 8hp
    $104.00

    In Stock Available immediately!
  27. VoicAs Reduxer Bit Reducer
    VoicAs Reduxer Bit Reducer 8hp
    $199.00

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  28. A-104 Trautonium Formant Filter
    Doepfer A-104 Trautonium Formant Filter 20hp
    $179.00

    In Stock Available immediately!
  29. A-137-1 Wave Multiplier I
    Doepfer A-137-1 Wave Multiplier I 14hp
    $149.00

    In Stock Available immediately!
  30. ALM Busy Circuits BXx2 Preamp + EQ
    ALM Busy Circuits BXx2 Preamp + EQ 8hp
    $189.00

    In Stock Available immediately!
  31. A-102 Diode Low Pass Filter
    Doepfer A-102 Diode Low Pass Filter 8hp
    $115.00

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    Out of Stock

    We're awaiting our next batch of this item. Pre-order to reserve your place in line and we'll fulfill your order as soon as we receive our shipment
  32. GPI Guitar Pedal Interface
    Retro Mechanical Labs GPI Guitar Pedal Interface 8hp
    $99.00

    In Stock Available immediately!
  33. A-138d Crossfader / Effect Insert
    Doepfer A-138d Crossfader / Effect Insert 8hp
    $99.00

    In Stock Available immediately!
  34. A-116 Waveform Processor
    Doepfer A-116 Waveform Processor 8hp
    $90.00

    In Stock Available immediately!
  35. Doepfer A-105-2V 24dB SSI Low Pass Filter
    Doepfer A-105-2 24dB SSI Low Pass Filter 4hp
    As low as $139.99
    Multiple Options Make a selection for stock info
  36. A-128 Fixed Filter Bank
    Doepfer A-128 Fixed Filter Bank 20hp
    $230.00

    In Stock Available immediately!
  37. Electron Fuzz Custom CV Eurorack Version
    Retro Mechanical Labs Electron Fuzz Custom CV Eurorack Version 28hp
    $319.00

    In Stock Available immediately!
  38. A-123-2 6/12/18/24dB Highpass
    Doepfer A-123-2 6/12/18/24dB Highpass 8hp
    $150.00

    In Stock Available immediately!
  39. ALM Busy Circuits HPO Headphone Output [USED]
    ALM Busy Circuits HPO Headphone Output 2hp
    • USED
    $69.99

    In Stock Available immediately!
  40. Doepfer A-139-2 Headphone Amplifier [USED]
    Doepfer A-139-2 Headphone Amplifier 6hp
    • USED
    $59.99

    In Stock Available immediately!
  41. Save $15 ALM Busy Circuits BXx2 Preamp + EQ
    ALM Busy Circuits BXx2 Preamp + EQ 8hp
    • DEMO
    • Sale
    $189.00 $174.00
    In Stock Available immediately!
  42. ALM Busy Circuits MCF Filter [USED]
    ALM Busy Circuits MCF Filter (Gray) 6hp
    • USED
    $229.00

    In Stock Available immediately!
  43. Doepfer A-127 VC Triple Resonance Filter [USED]
    Doepfer A-127 VC Triple Resonance Filter 28hp
    • USED
    $169.00

    In Stock Available immediately!
  44. Doepfer A-119V External Input / Envelope Follower [USED]
    Doepfer A-119V External Input / Envelope Follower (Black) 8hp
    • USED
    $69.99

    In Stock Available immediately!

1-45 of 45 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.