Eurorack + Modular Synths

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  1. WMD PM DB25 MKII
    WMD PM DB25 MKII Performance Mixer MkII Expander 4hp
    • NEW
    $299.00

    Preorder New release—reserve yours today!

    Preorder

    We're awaiting our full initial batch of this item—pre-order to reserve your place in line! Customer orders are fulfilled in the order in which they are received.
  2. 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
  3. Save $35 A-143-2 Quad ADSR
    Doepfer A-143-2 Quad ADSR 26hp
    • Sale
    $255.00 $220.00
    In Stock Available immediately!
  4. Rides in the Storm FEG Loopable ADSR EG
    Rides in the Storm FEG Loopable ADSR EG 4hp
    $69.99

    In Stock Available immediately!
  5. Rides in the Storm QEG Quad Envelope
    Rides in the Storm QEG Quad Envelope 20hp
    $250.00

    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
  6. Save $30 A-143-1 Quad Complex Envelope Generator
    Doepfer A-143-1 Quad Complex Envelope Generator 28hp
    • Sale
    $214.00 $184.00
    In Stock Available immediately!
  7. Save $25 Doepfer A-141-4 Quad Poly VCADSR
    Doepfer A-141-4 Quad Poly VCADSR 8hp
    • Sale
    $196.00 $171.00
    In Stock Available immediately!
  8. 14% off Doepfer A-154 Sequencer Controller
    Doepfer A-154 Sequencer Controller 22hp
    • Sale
    As low as $210.00
    Multiple Options Make a selection for stock info
  9. 15% off Doepfer A-141-2
    Doepfer A-141-2 Voltage Controlled Envelope Generator 14hp
    • Sale
    As low as $144.00
    Multiple Options Make a selection for stock info
  10. Doepfer A-171-2
    Doepfer A-171-2 Voltage Controlled Slew Processor / Generator 8hp
    • Sale
    As low as $153.00
    Multiple Options Make a selection for stock info
  11. 14% off Doepfer A-140 ADSR Envelope Generator
    Doepfer A-140 ADSR Envelope Generator 8hp
    • Sale
    As low as $94.00
    Multiple Options Make a selection for stock info
  12. A-142-1 Voltage Controlled Decay / Gate
    Doepfer A-142-1 Voltage Controlled Decay / Gate 8hp
    $99.00

    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
  13. Doepfer A-100 Eurorack Blank Panel
    Doepfer A-100 Eurorack Blank Panel
    • Sale
    As low as $3.50
    Multiple Options Make a selection for stock info
  14. Save $20 Doepfer A-142-2 Dual Envelope-Controlled VCA
    Doepfer A-142-2 Dual Envelope Controlled VCA 8hp
    • Sale
    $159.99 $139.99
    In Stock Available immediately!
  15. WMD OSD CV Utility
    WMD OSD CV Utility 4hp
    $199.00

    In Stock Available immediately!
  16. A-166 Dual Logic
    Doepfer A-166 Dual Logic 8hp
    $130.00

    In Stock Available immediately!
  17. Save $20 A-142-4 Quad Decay
    Doepfer A-142-4 Quad Decay 8hp
    • Sale
    $123.00 $103.00
    In Stock Available immediately!
  18. A-161 Clock / Trigger Sequencer
    Doepfer A-161 Clock / Trigger Sequencer 4hp
    $80.00

    In Stock Available immediately!
  19. 12% off Doepfer’s A-149-2 is an essential expansion module for the A-149-1 Quantized/Stored Random Voltages.
    Doepfer A-149-2 Digital Random Voltages 4hp
    • Sale
    $74.99 $65.62
    In Stock Available immediately!
  20. 12% off A-168-1 PWM Module
    Doepfer A-168-1 PWM Module 4hp
    • Sale
    $68.00 $59.50
    In Stock Available immediately!
  21. SYS-540 Dual Envelope Generator + LFO
    Roland SYS-540 Dual Envelope Generator + LFO 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
  22. 30% off DIN Sync Expander
    Malekko Heavy Industry DIN Sync Expander 4hp
    • Sale
    $49.00 $34.30
    In Stock Available immediately!
  23. Sonicsmith MIDVertor E1 (Silver + Black)
    Sonicsmith MIDVertor E1 MIDI Expander for ConVertor E1 (Silver + Black) 6hp
    $290.00

    Preorder New release—reserve yours today!

    Preorder

    We're awaiting our full initial batch of this item—pre-order to reserve your place in line! Customer orders are fulfilled in the order in which they are received.
  24. A-126-2exp Frequency Shifter Expander
    Doepfer A-126-2exp Frequency Shifter Expander 2hp
    As low as $59.99
    Multiple Options Make a selection for stock info
  25. Doepfer A-154V Seq. Cont. (Vintage Edition) [USED]
    Doepfer A-154V Seq. Cont. (Vintage Edition) 22hp
    • USED
    $179.00

    In Stock Available immediately!
  26. Doepfer A-154 Sequencer Controller [USED]
    Doepfer A-154 Sequencer Controller 22hp
    • USED
    $179.00

    In Stock Available immediately!
  27. Rides in the Storm FEG Loopable ADSR EG [USED]
    Rides in the Storm FEG Loopable ADSR EG 4hp
    • USED
    $59.99

    In Stock Available immediately!
  28. WMD Javelin ADSR and VCA [USED]
    WMD Javelin ADSR and VCA 6hp
    • USED
    $349.00

    In Stock Available immediately!
  29. WMD PM Channels Expander [USED]
    WMD PM Channels Expander 10hp
    • USED
    $499.00

    In Stock Available immediately!
  30. WMD PM Channels Expander (Black) [USED]
    WMD PM Channels Expander (Black) 10hp
    • USED
    $499.00

    In Stock Available immediately!
  31. Save $20 Doepfer A-154 Sequencer Controller
    Doepfer A-154 Sequencer Controller 22hp
    • DEMO
    • Sale
    $218.00 $198.00
    In Stock Available immediately!
  32. WMD OSD CV Utility [USED]
    WMD OSD CV Utility 4hp
    • USED
    $169.00

    In Stock Available immediately!
  33. WMD PM Channels Expander for Performance Mixer [USED]
    WMD PM Channels Expander for Performance Mixer (Black) 10hp
    • USED
    $499.00

    In Stock Available immediately!
  34. WMD Javelin ADSR Envelope Generator [USED]
    WMD Javelin ADSR Envelope Generator 6hp
    • USED
    $349.00

    In Stock Available immediately!
  35. Doepfer A-126-2expV Frequency Shifter Expander [USED]
    Doepfer A-126-2expV Frequency Shifter Expander (Black) 2hp
    • USED
    $49.99

    In Stock Available immediately!
  36. WMD PM Channels Expander [USED]
    WMD PM Channels Expander (Black) 10hp
    • USED
    $499.00

    In Stock Available immediately!
  37. Doepfer A-142-2 Dual Envelope Controlled VCA [USED]
    Doepfer A-142-2 Dual Envelope Controlled VCA 8hp
    • USED
    $129.00

    In Stock Available immediately!
  38. WMD AXXENT Expander for Metron [USED]
    WMD AXXENT Expander for Metron 4hp
    • USED
    $199.00

    In Stock Available immediately!
  39. WMD PM Channels Expander for Performance Mixer (Black) [USED]
    WMD PM Channels Expander for Performance Mixer (Black) 10hp
    • USED
    $499.00

    In Stock Available immediately!
  40. WMD Voltera Expander for Metron (Black) [USED]
    WMD Voltera Expander for Metron (Black) 4hp
    • USED
    $279.00

    In Stock Available immediately!
  41. WMD PM Channels Expander for Performance Mixer (Black) [USED]
    WMD PM Channels Expander for Performance Mixer (Black) 10hp
    • USED
    $499.00

    In Stock Available immediately!
  42. WMD Voltera Expander for Metron (Black) [USED]
    WMD Voltera Expander for Metron (Black) 4hp
    • USED
    $279.00

    In Stock Available immediately!
  43. WMD Voltera Expander for Metron (Black) [USED]
    WMD Voltera Expander for Metron (Black) 4hp
    • USED
    $279.00

    In Stock Available immediately!
  44. WMD Javelin ADSR and VCA [USED]
    WMD Javelin ADSR and VCA 6hp
    • USED
    $349.00

    In Stock Available immediately!
  45. WMD Sequential Switch Matrix Expander [USED]
    WMD Sequential Switch Matrix Expander 8hp
    • USED
    $159.00

    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.