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. ES-8 USB Audio Interface
    Expert Sleepers ES-8 USB Audio Interface 8hp
    $459.00

    In Stock Available immediately!
  3. Expert Sleepers ES-9
    Expert Sleepers ES-9 Eurorack Audio + CV Interface 16hp
    $635.00

    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
  4. ES-5 mk3 Expander for ES-3
    Expert Sleepers ES-5 mk3 Expander for ES-3 4hp
    $125.00

    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
  5. Make Noise XOH Output Interface
    Make Noise XOH Output Interface 6hp
    $110.00

    In Stock Available immediately!
  6. Expert Sleepers Tiny MIDI Breakout Expander
    Expert Sleepers Tiny MIDI Breakout Expander 2hp
    $55.00

    In Stock Available immediately!
  7. ES-3 MK4 Lightpipe to CV Interface
    Expert Sleepers ES-3 MK4 Lightpipe to CV Interface 8hp
    $209.00

    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
  8. Expert Sleepers ESX-8GT mk3 Gate Expansion front view
    Expert Sleepers ESX-8GT mk3 Gate Expansion 4hp
    $75.00

    In Stock Available immediately!
  9. ESX-8CV Mk2 Expansion
    Expert Sleepers ESX-8CV Mk2 Expansion 4hp
    $175.00

    In Stock Available immediately!
  10. ADDAC System ADDAC710 Balanced Outputs
    ADDAC System ADDAC710 Balanced Outputs 6hp
    $175.00

    In Stock Available immediately!
  11. ADDAC 200 PI Pedal Integrator Black
    ADDAC System ADDAC200PI Pedal Integrator 4hp
    $115.00

    In Stock Available immediately!
  12. ADDAC ADDAC506B
    ADDAC System ADDAC506B Stochastic Function Generator Expansion 2hp
    $115.00

    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. ES-6 mk3 CV to Lightpipe Interface
    Expert Sleepers ES-6 mk3 CV to Lightpipe Interface 4hp
    $160.00

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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
  14. Expert Sleepers CVM-8
    Expert Sleepers CVM-8 CV to MIDI + I2C Converter 4hp
    $225.00

    In Stock Available immediately!
  15. Mult
    Make Noise Mult 4hp
    $33.00

    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
  16. Expert Sleepers FHX-8GT Gate Expander for FH-2 Factotum
    Expert Sleepers FHX-8GT Gate Expander for FH-2 4hp
    $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
  17. Expert Sleepers Little Mikey Preamp
    Expert Sleepers Little Mikey Preamp 8hp
    $175.00

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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
  18. Multiplicity XV Buffered Mult
    Division 6 Multiplicity XV Buffered Mult 10hp
    $165.00

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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
  19. ESX-8MD MIDI & DINsync Expansion
    Expert Sleepers ESX-8MD MIDI & DINsync Expansion 10hp
    $160.00

    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
  20. ADDAC System ADDAC810 Phono Pre-Amp (Black)
    ADDAC System ADDAC810 Phono Pre-Amp (Black) 4hp
    $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
  21. Expert Sleepers FHX-8CV FH-2 Factotum Expander
    Expert Sleepers FHX-8CV FH-2 Expander 4hp
    $145.00

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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
  22. ADDAC System ADDAC807A+ (Black)
    ADDAC System ADDAC807A+ Individual Channel Stereo Outputs (Black) 6hp
    $105.00

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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
  23. Expert Sleepers MIDI Breakout Expander
    Expert Sleepers MIDI Breakout Expander 4hp
    $50.00

    In Stock Available immediately!
  24. Expert Sleepers ES-7 mk2
    Expert Sleepers ES-7 CV Input Expander 4hp
    $99.00

    In Stock Available immediately!
  25. ADDAC System ADDAC213B (Black)
    ADDAC System ADDAC213B Eurorack Bridge Expansion (Black) 3hp
    $105.00

    In Stock Available immediately!
  26. ADDAC System ADDAC711 Balanced Inputs
    ADDAC System ADDAC711 Balanced Inputs 6hp
    $249.00

    In Stock Available immediately!
  27. ADDAC System ADDAC807C (Black)
    ADDAC System ADDAC807C VC Stereo Mixer Expansion (Black) 38hp
    $710.00

    In Stock Available immediately!
  28. ADDAC ADDAC800X High-End Audio Outputs
    ADDAC System ADDAC800X High-End Outputs 8hp
    $475.00

    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
  29. ADDAC System ADDAC402B HRG Expansion (Red)
    ADDAC System ADDAC402B HRG Expansion (Red) 4hp
    $115.00

    In Stock Available immediately!
  30. Multiplicity VI Buffered Mult
    Division 6 Multiplicity VI Buffered Mult 2hp
    $90.00

    In Stock Available immediately!
  31. WMD Voltera Metron Expander
    WMD Voltera Metron Voltage Expander 4hp
    $269.00

    In Stock Available immediately!
  32. ADDAC System ADDAC501B CR Expansion (Black)
    ADDAC System ADDAC501B CR Expansion (Black) 4hp
    $150.00

    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
  33. ADDAC System ADDAC807C+ (Black)
    ADDAC System ADDAC807C+ Individual Channel Stereo Outputs (Black) 2hp
    $80.00

    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
  34. Multiplicity VI Phat Buffered Mult
    Division 6 Multiplicity VI Phat Buffered Mult 3hp
    $90.00

    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
  35. ES-40 SPDIF Interface
    Expert Sleepers ES-40 SPDIF Interface 6hp
    $125.00

    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
  36. Alyseum Q-MIXI Input Expander for Q-MIX
    Alyseum Q-MIXI Input Expander for Q-MIX 6hp
    $149.00

    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
  37. 10% off ADDAC System ADDAC800X High-End Outputs [USED]
    ADDAC System ADDAC800X High-End Outputs 8hp
    • USED
    • Sale
    $399.00 $359.00
    In Stock Available immediately!
  38. 25% off WMD PM Channels Expander for Performance Mixer [USED]
    WMD PM Channels Expander for Performance Mixer (Black) 10hp
    • USED
    • Sale
    $499.00 $375.00
    In Stock Available immediately!
  39. 20% off WMD PM Channels Expander [USED]
    WMD PM Channels Expander (Black) 10hp
    • USED
    • Sale
    $499.00 $400.00
    In Stock Available immediately!
  40. 20% off ADDAC System ADDAC506B Stochastic Function Generator Expansion [USED]
    ADDAC System ADDAC506B Stochastic Function Generator Expansion 2hp
    • USED
    • Sale
    $99.99 $80.00
    In Stock Available immediately!
  41. 15% off WMD AXXENT Expander for Metron [USED]
    WMD AXXENT Expander for Metron 4hp
    • USED
    • Sale
    $199.00 $170.00
    In Stock Available immediately!
  42. 15% off WMD PM Channels Expander for Performance Mixer (Black) [USED]
    WMD PM Channels Expander for Performance Mixer (Black) 10hp
    • USED
    • Sale
    $499.00 $425.00
    In Stock Available immediately!
  43. 15% off WMD Voltera Expander for Metron (Black) [USED]
    WMD Voltera Expander for Metron (Black) 4hp
    • USED
    • Sale
    $279.00 $238.00
    In Stock Available immediately!
  44. 15% off WMD PM Channels Expander for Performance Mixer (Black) [USED]
    WMD PM Channels Expander for Performance Mixer (Black) 10hp
    • USED
    • Sale
    $499.00 $425.00
    In Stock Available immediately!
  45. 15% off WMD Voltera Expander for Metron (Black) [USED]
    WMD Voltera Expander for Metron (Black) 4hp
    • USED
    • Sale
    $279.00 $238.00
    In Stock Available immediately!
  46. 15% off WMD Voltera Expander for Metron (Black) [USED]
    WMD Voltera Expander for Metron (Black) 4hp
    • USED
    • Sale
    $279.00 $238.00
    In Stock Available immediately!
  47. 15% off Make Noise Brains Pressure Points Expansion [USED]
    Make Noise Brains Pressure Points Expansion 4hp
    • USED
    • Sale
    $249.00 $212.00
    In Stock Available immediately!
  48. 15% off Make Noise Brains Pressure Points Expansion [USED]
    Make Noise Brains Pressure Points Expansion 4hp
    • USED
    • Sale
    $249.00 $212.00
    In Stock Available immediately!

1-48 of 59 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.