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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. 2hp
  2. 4MS
  3. ACL
  4. AJH Synth
  5. ALM Busy Circuits
  6. Analogue Solutions
  7. Animodule
  8. Antimatter Audio
  9. Arcenson
  10. BASTL Instruments
  11. Befaco
  12. Blue Lantern
  13. Conjured Circuits
  14. Dave Smith Instruments
  15. Delta Sound Labs
  16. Division 6
  17. Doepfer
  18. Electrosmith
  19. Elta Music
  20. EMW
  21. Endorphin.es
  22. Eowave
  23. Erica Synths
  24. Frap Tools
  25. Frequency Central
  26. Grp
  27. Hexinverter
  28. Hungry Robot
  29. Instruo
  30. Intellijel Designs
  31. Jomox
  32. Joranalogue
  33. Kilpatrick Audio
  34. Koma Elektronik
  35. L-1
  36. Make Noise
  37. Malekko Heavy Industry
  38. Manhattan Analog
  39. Medic Modules
  40. Modor
  41. Moog
  42. Mutable Instruments
  43. Patching Panda
  44. Pittsburgh Modular
  45. Qu-Bit Electronix
  46. Radikal Technologies
  47. Random Source
  48. Razmasynth
  49. Recovery
  50. Roland
  51. Rossum
  52. Snazzy FX
  53. STG Soundlabs
  54. Strange Science Instruments
  55. Studio Electronics
  56. Synthesis Technology
  57. System 80
  58. The Harvestman
  59. Tiptop Audio
  60. Toppobrillo
  61. Verbos Electronics
  62. Vermona
  63. Vinicius Electrik
  64. Vintage Synth Lab
  65. WMD
  66. WMD / SSF
  67. XAOC Devices
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
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  1. A-105-4 Quad Poly SSI VCF
    Doepfer A-105-4 Quad Poly SSI VCF 8hp
    $245.00

    Arriving Soon We're expecting more shortly!
  2. A-106-1 X-Treme Filter
    Doepfer A-106-1 X-Treme Filter
    $149.00

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

    In Stock Available immediately!
  4. A-106-5 -12dB SEM VCF
    Doepfer A-106-5 -12dB SEM VCF 8hp
    • DEMO
    $98.00

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

    In Stock Available immediately!
  6. A-106-6 XPander Filter
    Doepfer A-106-6 XPander Filter 12hp
    $245.00

    In Stock Available immediately!
  7. A-107 Multitype Morphing Filter
    Doepfer A-107 Multitype Morphing Filter
    $399.00

    In Stock Available immediately!
  8. A-108 48dB Filter
    Doepfer A-108 48dB Filter 12hp
    $199.00

    In Stock Available immediately!
  9. A-120 VCF1 24dB Low Pass Filter
    Doepfer A-120 VCF1 24dB Low Pass Filter 8hp
    $130.00

    In Stock Available immediately!
  10. A-120v VCF1 24dB Low Pass Filter (Vintage Series)
    Doepfer A-120v VCF1 24dB Low Pass Filter (Vintage Series) 8hp
    $130.00

    In Stock Available immediately!
  11. A-121-2 12dB Multimode Filter
    Doepfer A-121-2 12dB Multimode Filter 8hp
    $150.00

    In Stock Available immediately!
  12. A-121-2v 12dB Multimode Filter (Vintage Edition)
    Doepfer A-121-2v 12dB Multimode Filter (Vintage Edition) 8hp
    $150.00

    In Stock Available immediately!
  13. A-122 VCF3 24dB Low Pass 2
    Doepfer A-122 VCF3 24dB Low Pass 2 8hp
    $115.00

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

    In Stock Available immediately!
  15. A-124 VCF5 Wasp Filter
    Doepfer A-124 VCF5 Wasp Filter 8hp
    $110.00

    In Stock Available immediately!
  16. A-124SE VCF5 Wasp Filter (Special Edition)
    Doepfer A-124SE VCF5 Wasp Filter (Special Edition) 8hp
    $99.00

    In Stock Available immediately!
  17. A-127 VC Triple Resonance Filter
    Doepfer A-127 VC Triple Resonance Filter 28hp
    $245.00

    In Stock Available immediately!
  18. A-127 VCRF Triple VCF
    Doepfer A-127 VCRF Triple VCF
    • USED
    • Sale
    $209.00 $201.00
    In Stock Available immediately!
  19. A-127BOM Breakout Module for A-127
    Doepfer A-127BOM Breakout Module for A-127 8hp
    $95.00

    In Stock Available immediately!
  20. A-128 Fixed Filter Bank
    Doepfer A-128 Fixed Filter Bank 20hp
    $230.00

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

    In Stock Available immediately!
  22. 2144 LPF Low Pass Filter
    Electrosmith 2144 LPF Low Pass Filter 4hp
    $119.00

    Arriving Soon We're expecting more shortly!
  23. Polivoks VCF
    Elta Music Polivoks VCF 10hp
    $150.00

    Arriving Soon We're expecting more shortly!
  24. Diode VCF (SILVER)
    EMW Diode VCF (SILVER) 10hp
    • Sale
    $147.00 $110.25
    In Stock Available immediately!
  25. Fixed Filter Bank (SILVER)
    EMW Fixed Filter Bank (SILVER) 10hp
    • Sale
    $139.00 $104.25
    In Stock Available immediately!
  26. Fixed Filter Bank (SILVER)
    EMW Fixed Filter Bank (SILVER) 10hp
    • DEMO
    • Sale
    $110.00 $88.00
    In Stock Available immediately!
  27. MG24 VCF (Black)
    EMW MG24 VCF (Black) 10hp
    • Sale
    $169.00 $126.75
    In Stock Available immediately!
  28. S100 VCF (SILVER)
    EMW S100 VCF (SILVER) 10hp
    • Sale
    $156.00 $117.00
    In Stock Available immediately!
  29. Grand Terminal Synth Voice (Black)
    Endorphin.es Grand Terminal Synth Voice (Black) 26hp
    $650.00

    Coming Soon Reserve your pre-order today!
  30. Fluctuations Magnetiques Quad Filter
    Eowave Fluctuations Magnetiques Quad Filter 22hp
    • Sale
    $249.00 $199.20
    Arriving Soon We're expecting more shortly!
    Out of stock
  31. Magnetosphere Transistor Lowpass Filter
    Eowave Magnetosphere Transistor Lowpass Filter 10hp
    • Sale
    $129.00 $103.20
    In Stock Available immediately!
  32. Acid Simona VCF
    Erica Synths Acid Simona VCF 12hp
    $229.00

    Arriving Soon We're expecting more shortly!
  33. AcidBox III Desktop Polivoks VCF
    Erica Synths AcidBox III Desktop Polivoks VCF
    $469.00

    Arriving Soon We're expecting more shortly!
  34. Black Dual VCF
    Erica Synths Black Dual VCF 18hp
    $415.00

    In Stock Available immediately!
  35. Black Polivoks VCF V2
    Erica Synths Black Polivoks VCF V2 10hp
    $199.00

    In Stock Available immediately!
  36. Fusion VCF V2
    Erica Synths Fusion VCF V2 14hp
    $350.00

    In Stock Available immediately!
  37. Pico VCF1 Polivoks Filter
    Erica Synths Pico VCF1 Polivoks Filter 3hp
    $115.00

    In Stock Available immediately!
  38. Pico VCF3 Filter
    Erica Synths Pico VCF3 Filter 3hp
    $115.00

    Arriving Soon We're expecting more shortly!
  39. Frap Tools Fumana Spectral Filter Bank
    Frap Tools Frap Tools Fumana Spectral Filter Bank 42hp
    $999.00

    In Stock Available immediately!
  40. Device Synth Voice
    Frequency Central Device Synth Voice 22hp
    $479.99

    Arriving Soon We're expecting more shortly!
  41. State 700 Filter
    Frequency Central State 700 Filter 10hp
    • Sale
    $269.00 $215.20
    In Stock Available immediately!
  42. System X Filter
    Frequency Central System X Filter 10hp
    • Sale
    $269.00 $215.20
    In Stock Available immediately!
  43. Vogue VCF / VCA
    Frequency Central Vogue VCF / VCA 10hp
    • Sale
    $269.00 $215.20
    In Stock Available immediately!
  44. P03 24dB VCF Ladder Filter
    Grp P03 24dB VCF Ladder Filter 10hp
    $379.99

    In Stock Available immediately!
  45. P04 12dB SVF State Variable VCF
    Grp P04 12dB SVF State Variable VCF 10hp
    $329.99

    In Stock Available immediately!
  46. P09 Fixed Filter Bank
    Grp P09 Fixed Filter Bank 16hp
    $374.99

    Arriving Soon We're expecting more shortly!
  47. Red Dragon Morphing VCF
    Hexinverter Red Dragon Morphing VCF 12hp
    $249.00

    Arriving Soon We're expecting more shortly!
  48. VCF Lowpass Filter
    Hungry Robot VCF Lowpass Filter
    $150.00

    In Stock Available immediately!
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49-96 of 174 items

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