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

    In Stock Available immediately!
  3. A-198 Trautonium Manual / Ribbon Controller
    Doepfer A-198 Trautonium Manual / Ribbon Controller 8hp
    $290.00

    In Stock Available immediately!
  4. Random Source Serge SEQ 8 XL Sequencer Programmer
    Random Source SEQ8 XL Serge Sequencer + Programmer 42hp
    $589.99

    In Stock Available immediately!
  5. Doepfer A-178 Theremin Control Voltage Source
    Doepfer A-178 Theremin Control Voltage Source 8hp
    As low as $110.00
    Multiple Options Make a selection for stock info
  6. Random Source Haible VC Poly Resonator
    Random Source Haible VC Poly Resonator 18hp
    $449.99

    In Stock Available immediately!
  7. A-106-5 -12dB SEM VCF
    Doepfer A-106-5 -12dB SEM VCF 8hp
    $115.00

    In Stock Available immediately!
  8. Random Source Serge Variable Bandwidth Filter
    Random Source Serge Variable Bandwidth Filter (VCF2) 18hp
    $399.99

    In Stock Available immediately!
  9. Doepfer A-101-8 Photo Phasing
    Doepfer A-101-8 Photo Phasing 4hp
    As low as $149.99
    Multiple Options Make a selection for stock info
  10. 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
  11. A-124 VCF5 Wasp Filter
    Doepfer A-124 VCF5 Wasp Filter 8hp
    $105.00

    In Stock Available immediately!
  12. 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
  13. Random Source Serge Variable Slope Filter
    Random Source Serge Variable Slope Filter (VCFS) 14hp
    $339.99

    In Stock Available immediately!
  14. Doepfer A-121-3 Multimode VCF - Slim Line
    Doepfer A-121-3 Multimode VCF (Slim Line) 4hp
    $124.00

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

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

    In Stock Available immediately!
  17. Doepfer A-197-3 RGB LED Controller
    Doepfer A-197-3 RGB LED Controller 4hp
    $89.99

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

    In Stock Available immediately!
  19. 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
  20. SYS-572 Phase Shifter + Delay + LFO
    Roland SYS-572 Phase Shifter + Delay + LFO 16hp
    $419.99

    In Stock Available immediately!
  21. Doepfer A-198 Trautonium Ribbon Only
    Doepfer A-198 Trautonium Controller (Ribbon Only)
    $200.00

    In Stock Available immediately!
  22. Roland System-500 505 module, front view
    Roland SYS-505 Dual VCF 16hp
    $399.99

    Backorder Reserve your order today!

    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
  23. A-127 VC Triple Resonance Filter
    Doepfer A-127 VC Triple Resonance Filter 28hp
    $198.00

    In Stock Available immediately!
  24. A-174-2 Wheels
    Doepfer A-174-2 Wheels 14hp
    $92.00

    In Stock Available immediately!
  25. This beefy power supply features 2000mA on the +12V rail, 1200mA on -12V, and 4000mA on +5V.
    Doepfer A-100PSU3 Power Supply
    $170.00

    In Stock Available immediately!
  26. 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
  27. A-101-6 Opto FET Filter / Phaser
    Doepfer A-101-6 Opto FET Filter / Phaser 8hp
    $128.00

    In Stock Available immediately!
  28. A-177-2 Foot Controllers
    Doepfer A-177-2 Foot Controllers 4hp
    $60.00

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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
  29. A-128 Fixed Filter Bank
    Doepfer A-128 Fixed Filter Bank 20hp
    $230.00

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

    In Stock Available immediately!
  31. A-173-1/2 Micro Keyboard / Manual Gate
    Doepfer A-173-1/2 Micro Keyboard / Manual Gate 12hp
    $199.99

    In Stock Available immediately!
  32. 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!
  33. A-104 Trautonium Formant Filter
    Doepfer A-104 Trautonium Formant Filter 20hp
    $179.00

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

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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
  35. A-100AD5 +5V Adapter
    Doepfer A-100AD5 +5V Adapter
    $20.00

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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
  36. 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
  37. A-102 Diode Low Pass Filter
    Doepfer A-102 Diode Low Pass Filter 8hp
    $115.00

    In Stock Available immediately!
  38. A-125 Voltage Controlled Phase Shifter
    Doepfer A-125 Voltage Controlled Phase Shifter 8hp
    $105.00

    In Stock Available immediately!
  39. A-100SSB is a combo PSU and busboard sporting 8 connectors.
    Doepfer A-100SSB Small Supply / Bus
    $99.99

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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
  40. A-100 Bus Board V6
    Doepfer A-100 Bus Board V6
    $49.99

    In Stock Available immediately!
  41. A-100 DIY Eurorack Case Kit
    Doepfer A-100 DIY Eurorack Case Kit
    $195.00

    In Stock Available immediately!
  42. A-198m Trautonium Controller (Module Only)
    Doepfer A-198m Trautonium Controller (Module Only) 8hp
    $90.00

    In Stock Available immediately!
  43. Doepfer A-179-2 Light-Controlled CV/Gate Source
    Doepfer A-179-2 Light-Controlled CV/Gate Source 4hp
    $89.00

    In Stock Available immediately!
  44. SSSR Labs SM801 Fader
    SSSR Labs SM801 Fader Controller + Voltage Source 3hp
    $40.00

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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
  45. 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
  46. SYS-521 Dual Low Pass VCF + Mixer
    Roland SYS-521 Dual Low Pass VCF + Mixer 16hp
    $399.99

    In Stock Available immediately!
  47. Doepfer A-100 DIY Eurorack Case Kit (No PSU)
    Doepfer A-100 DIY Eurorack Case Kit (No PSU)
    $180.00

    In Stock Available immediately!

1-48 of 58 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.