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Modular Synths

Modular synths are organized around a fundamental principle: individual modules provide a single/finite number of functions that vary depending on how they're patched. From this, all finite functions can combine in seemingly infinite ways, providing an open ended music making tool. This system is not unlike organs in the body, which are fixed in their function, but can work within a limitless number of species of animals.

Modules are usually connected to a common power supply, affixed inside a case, and connected to one another via patch cables. These patch cables decide how the instrument is constructed, with new patches essentially creating new "creatures." This means the architecture of one's synthesizer can always evolve. New modules can be added as new functionality is desired, and your modular synthesizer can grow and change with one's needs.

Fortunately, the power supply specifications are all standardized, so any eurorack module can work with any eurorack power supply. The signal levels are also standardized, allowing any output to be patched into any input. With this openness, it is also possible to create patches that do not function, this is where research and signal flow theory become essential, especially with so many diverse functions available in the Eurorack modular format. You can find the best selection of modular synth systems, modules, and DIY kits in the eurorack format at Perfect Circuit.

Brand
  1. 4MS
  2. ACL
  3. ALM Busy Circuits
  4. Alyseum
  5. BASTL Instruments
  6. Befaco
  7. Blue Lantern
  8. EMW
  9. Erica Synths
  10. Expert Sleepers
  11. Grp
  12. Hungry Robot
  13. Intellijel Designs
  14. Koma Elektronik
  15. L-1
  16. Liivatera
  17. Make Noise
  18. Malekko Heavy Industry
  19. Manikin Electronic
  20. Meng Qi
  21. Moog
  22. Mutable Instruments
  23. nw2s
  24. Pittsburgh Modular
  25. Pulp Logic
  26. Quicco Sound
  27. Retro Mechanical Labs
  28. Soundmachines
  29. The Harvestman
  30. Vermona
  31. WMD
  32. XAOC Devices
  33. XOR Electronics
HP
Category
  1. 1U / Tile
  2. Accessories
  3. Blank Panel
  4. Bundles
  5. Cases
  6. Clocking
  7. Controller
  8. DIY
  9. Delay
  10. Distortion / Shaping
  11. Drums / Percussion
  12. Dynamics / EQ
  13. Envelope
  14. Expander
  15. Filter
  16. Full Voice
  17. In / Out
  18. LFO
  19. MIDI to CV
  20. Mixer
  21. Multiple
  22. Noise
  23. Oscillator
  24. Patch Cables
  25. Phaser / Chorus
  26. Pitch Effect
  27. Power
  28. Quantizer
  29. Random
  30. Reverb
  31. Sample & Hold
  32. Sampler
  33. Sequencer
  34. System
  35. Tube
  36. Utility
  37. VCA
  38. Video
Price
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  1. WAV Recorder
    4MS WAV Recorder 6hp
    $269.00

    In Stock Available immediately!
  2. Audio Interface
    ACL Audio Interface 14hp
    $495.00

    Arriving Soon We're expecting more shortly!
  3. HPO Headphone Output
    ALM Busy Circuits HPO Headphone Output 2hp
    $69.00

    In Stock Available immediately!
  4. S.B.G. Pedal Interface
    ALM Busy Circuits S.B.G. Pedal Interface 4hp
    $130.00

    In Stock Available immediately!
  5. Record
    Alyseum Record 6hp
    $195.00

    In Stock Available immediately!
  6. Record
    Alyseum Record 6hp
    • DEMO
    $170.00

    In Stock Available immediately!
  7. Ciao Quad Line Output (Aluminum)
    BASTL Instruments Ciao Quad Line Output (Aluminum) 5hp
    $139.00

    In Stock Available immediately!
  8. I2 Instrument Interface
    Befaco I2 Instrument Interface 11hp
    $229.00

    Arriving Soon We're expecting more shortly!
  9. Output Module II
    Befaco Output Module II 6hp
    $159.00

    In Stock Available immediately!
  10. Output v3
    Befaco Output v3 4hp
    $149.99

    Arriving Soon We're expecting more shortly!
  11. HPA FXSND FX Send / Return
    Blue Lantern HPA FXSND FX Send / Return 7hp
    $95.00

    In Stock Available immediately!
  12. MIC. Interface (SILVER)
    EMW MIC. Interface (SILVER) 6hp
    • DEMO
    $60.00

    In Stock Available immediately!
  13. Black Output
    Erica Synths Black Output 14hp
    $339.00

    In Stock Available immediately!
  14. Black Output Module V2
    Erica Synths Black Output Module V2 14hp
    $339.99

    In Stock Available immediately!
  15. Black Pre-Fade Listen Expander
    Erica Synths Black Pre-Fade Listen Expander 6hp
    $95.00

    In Stock Available immediately!
  16. Pico Input
    Erica Synths Pico Input 3hp
    $75.00

    In Stock Available immediately!
  17. Pico Out
    Erica Synths Pico Out 3hp
    $95.00

    In Stock Available immediately!
  18. ES-40 SPDIF Interface
    Expert Sleepers ES-40 SPDIF Interface 6hp
    $130.00

    In Stock Available immediately!
  19. ES-5 mk3 Expander for ES-3
    Expert Sleepers ES-5 mk3 Expander for ES-3 4hp
    $150.00

    Arriving Soon We're expecting more shortly!
  20. ES-6 mk2 CV to Lightpipe Interface
    Expert Sleepers ES-6 mk2 CV to Lightpipe Interface 4hp
    $175.00

    In Stock Available immediately!
  21. ES-7 CV Input Expander
    Expert Sleepers ES-7 CV Input Expander 4hp
    $110.00

    In Stock Available immediately!
  22. ES-8 USB Audio Interface
    Expert Sleepers ES-8 USB Audio Interface 8hp
    $475.00

    Arriving Soon We're expecting more shortly!
  23. ES-8 USB Audio Interface (Bitwig Edition)
    Expert Sleepers ES-8 USB Audio Interface (Bitwig Edition) 8hp
    $475.00

    Arriving Soon We're expecting more shortly!
  24. ESX-4CV CV Expander for ES-4 / ES-5
    Expert Sleepers ESX-4CV CV Expander for ES-4 / ES-5 4hp
    $150.00

    In Stock Available immediately!
  25. ESX-8CV Expansion
    Expert Sleepers ESX-8CV Expansion 4hp
    $169.00

    Arriving Soon We're expecting more shortly!
  26. ESX-8GT mk3 Gate Expansion
    Expert Sleepers ESX-8GT mk3 Gate Expansion 4hp
    $79.00

    In Stock Available immediately!
  27. ESX-8MD MIDI & DINsync Expansion
    Expert Sleepers ESX-8MD MIDI & DINsync Expansion 10hp
    $155.00

    In Stock Available immediately!
  28. P12 Envelope Follower
    Grp P12 Envelope Follower 6hp
    $164.99

    In Stock Available immediately!
  29. P20 Stereo Output
    Grp P20 Stereo Output 16hp
    $379.99

    In Stock Available immediately!
  30. Hungry Robot Output Module
    Hungry Robot Output Module
    • USED
    $89.00

    In Stock Available immediately!
  31. Output Module
    Hungry Robot Output Module
    $100.00

    In Stock Available immediately!
  32. Audio I/O 1U
    Intellijel Designs Audio I/O 1U 24hp
    $119.00

    In Stock Available immediately!
  33. Audio I/O Jacks 1U
    Intellijel Designs Audio I/O Jacks 1U 16hp
    $20.00

    Arriving Soon We're expecting more shortly!
  34. Audio Interface II
    Intellijel Designs Audio Interface II 10hp
    $260.00

    In Stock Available immediately!
  35. Headphones 1U
    Intellijel Designs Headphones 1U 10hp
    $69.00

    In Stock Available immediately!
  36. Line Out 1U
    Intellijel Designs Line Out 1U 10hp
    $39.00

    In Stock Available immediately!
  37. Pedal I/O 1U
    Intellijel Designs Pedal I/O 1U 16hp
    $99.00

    Arriving Soon We're expecting more shortly!
  38. Pedal I/O Jacks 1U
    Intellijel Designs Pedal I/O Jacks 1U 8hp
    $20.00

    In Stock Available immediately!
  39. uJack Line Out
    Intellijel Designs uJack Line Out 6hp
    • DEMO
    $102.00

    In Stock Available immediately!
  40. uJack Line Out
    Intellijel Designs uJack Line Out 6hp
    $120.00

    In Stock Available immediately!
  41. Phones Dual Headphone Amp
    L-1 Phones Dual Headphone Amp 8hp
    • Sale
    $165.00 $130.97
    In Stock Available immediately!
  42. CV Gate Bus Out
    Liivatera CV Gate Bus Out 4hp
    • Sale
    $74.99 $49.97
    In Stock Available immediately!
  43. Rosie Output Interface
    Make Noise Rosie Output Interface 8hp
    $139.00

    In Stock Available immediately!
  44. SND/RTN FX Send
    Malekko Heavy Industry SND/RTN FX Send 4hp
    $125.00

    In Stock Available immediately!
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