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. Birdkids
  13. Blue Lantern
  14. Conjured Circuits
  15. Dave Smith Instruments
  16. Delta Sound Labs
  17. Division 6
  18. Doepfer
  19. Electrosmith
  20. Elta Music
  21. EMW
  22. Endorphin.es
  23. Eowave
  24. Erica Synths
  25. Frap Tools
  26. Frequency Central
  27. Grp
  28. Hexinverter
  29. Hungry Robot
  30. Instruo
  31. Intellijel Designs
  32. Jomox
  33. Joranalogue
  34. Kilpatrick Audio
  35. Koma Elektronik
  36. Korg
  37. L-1
  38. Make Noise
  39. Malekko Heavy Industry
  40. Manhattan Analog
  41. Medic Modules
  42. Modor
  43. Moog
  44. Mutable Instruments
  45. Patching Panda
  46. Perfect Circuit
  47. Pittsburgh Modular
  48. Plankton Electronics
  49. Qu-Bit Electronix
  50. Radikal Technologies
  51. Random Source
  52. Razmasynth
  53. Recovery
  54. Roland
  55. Rossum
  56. Snazzy FX
  57. Soundmachines
  58. Sputnik
  59. Strange Science Instruments
  60. Studio Electronics
  61. Synthesis Technology
  62. System 80
  63. Tall Dog Electronics
  64. The Harvestman
  65. Tiptop Audio
  66. Toppobrillo
  67. Verbos Electronics
  68. Vermona
  69. Vinicius Electrik
  70. Vintage Synth Lab
  71. WMD
  72. WMD / SSF
  73. XAOC Devices
HP
Category
  1. 1U / Tile
  2. 5U
  3. Accessories
  4. Blank Panel
  5. Bundles
  6. Cases
  7. Clocking
  8. Controller
  9. DIY
  10. Delay
  11. Distortion / Shaping
  12. Drums / Percussion
  13. Dynamics / EQ
  14. Envelope
  15. Expander
  16. Filter
  17. Full Voice
  18. In / Out
  19. LFO
  20. MIDI to CV
  21. Mixer
  22. Multiple
  23. Noise
  24. Oscillator
  25. Patch Cables
  26. Phaser / Chorus
  27. Pitch Effect
  28. Power
  29. Quantizer
  30. Random
  31. Reverb
  32. Sample & Hold
  33. Sampler
  34. Sequencer
  35. System
  36. Tube
  37. Utility
  38. VCA
  39. Video
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  1. LPF Low Pass Filter
    2hp LPF Low Pass Filter 2hp
    $99.00

    In Stock Available immediately!
  2. LPF Low Pass Filter (Black)
    2hp LPF Low Pass Filter (Black) 2hp
    $99.00

    In Stock Available immediately!
  3. MMF Multimode Filter
    2hp MMF Multimode Filter 2hp
    $119.00

    Arriving Soon We're expecting more shortly!
  4. MMF Multimode Filter (Black)
    2hp MMF Multimode Filter (Black) 2hp
    $119.00

    Arriving Soon We're expecting more shortly!
  5. Spectral Multiband Resonator
    4MS Spectral Multiband Resonator 26hp
    $475.00

    In Stock Available immediately!
  6. Tapographic Delay
    4MS Tapographic Delay 18hp
    $415.00

    In Stock Available immediately!
  7. Tapographic Delay
    4MS Tapographic Delay 18hp
    • DEMO
    $355.00

    In Stock Available immediately!
  8. Discrete Core Ladder Filter VCF
    ACL Discrete Core Ladder Filter VCF 18hp
    $527.00

    In Stock Available immediately!
  9. Dual State Variable VCF
    ACL Dual State Variable VCF 26hp
    $644.00

    Arriving Soon We're expecting more shortly!
  10. M/S Matrix
    ACL M/S Matrix 10hp
    $247.00

    In Stock Available immediately!
  11. VC Dual Delay
    ACL VC Dual Delay 21hp
    $474.00

    In Stock Available immediately!
  12. Finaliser R-EQ Reverb (Black)
    AJH Synth Finaliser R-EQ Reverb (Black) 18hp
    $445.00

    In Stock Available immediately!
  13. Fixed Filter Bank 914 (Black)
    AJH Synth Fixed Filter Bank 914 (Black) 30hp
    $559.00

    Coming Soon Reserve your pre-order today!
  14. Gemini 2412 Dual Vintage State Variable Filters (Black)
    AJH Synth Gemini 2412 Dual Vintage State Variable Filters (Black) 28hp
    • DEMO
    $400.50

    In Stock Available immediately!
  15. MiniMod Transistor Ladder VCF (Black)
    AJH Synth MiniMod Transistor Ladder VCF (Black) 14hp
    $315.00

    In Stock Available immediately!
  16. MiniMod Transistor Ladder VCF (Black)
    AJH Synth MiniMod Transistor Ladder VCF (Black) 14hp
    • DEMO
    $270.00

    In Stock Available immediately!
  17. MiniMod Transistor Ladder VCF (Silver)
    AJH Synth MiniMod Transistor Ladder VCF (Silver) 14hp
    $289.00

    In Stock Available immediately!
  18. MiniMod Transistor Ladder VCF (Silver)
    AJH Synth MiniMod Transistor Ladder VCF (Silver) 14hp
    • B-STK
    $260.10

    In Stock Available immediately!
  19. MiniMod VCF - Black Transistor Ladder Filter
    AJH Synth MiniMod VCF - Black Transistor Ladder Filter 14hp
    • USED
    $269.00

    In Stock Available immediately!
  20. Sonic XV Diode Ladder Filter (Black)
    AJH Synth Sonic XV Diode Ladder Filter (Black) 14hp
    $385.00

    In Stock Available immediately!
  21. Sonic XV Diode Ladder Filter (Silver)
    AJH Synth Sonic XV Diode Ladder Filter (Silver) 14hp
    $365.00

    In Stock Available immediately!
  22. Mum M8 S950 Lowpass Filter
    ALM Busy Circuits Mum M8 S950 Lowpass Filter 8hp
    $239.00

    In Stock Available immediately!
  23. Mum M8 S950 Lowpass Filter
    ALM Busy Circuits Mum M8 S950 Lowpass Filter 8hp
    • DEMO
    $215.00

    In Stock Available immediately!
  24. PE-1 2CH Equalizer
    ALM Busy Circuits PE-1 2CH Equalizer 5hp
    $99.00

    In Stock Available immediately!
  25. Telemark Eurorack Filter
    Analogue Solutions Telemark Eurorack Filter 18hp
    $299.00

    Arriving Soon We're expecting more shortly!
  26. Crossfold Modulation Processor
    Antimatter Audio Crossfold Modulation Processor 6hp
    $229.00

    In Stock Available immediately!
  27. Crossfold Modulation Processor
    Antimatter Audio Crossfold Modulation Processor 6hp
    • DEMO
    $205.00

    In Stock Available immediately!
  28. M104B Highpass Filter Moog 904B Clone PCB
    Arcenson M104B Highpass Filter Moog 904B Clone PCB
    $45.00

    In Stock Available immediately!
  29. BF-22 Dual MS-20 Modeled VCF (Black)
    Befaco BF-22 Dual MS-20 Modeled VCF (Black) 17hp
    $289.00

    Arriving Soon We're expecting more shortly!
  30. The Bateleur 42HP System
    Birdkids The Bateleur 42HP System
    $949.00

    In Stock Available immediately!
  31. Asteroid Operator VCF (2018 Black)
    Blue Lantern Asteroid Operator VCF (2018 Black) 23hp
    $285.00

    Arriving Soon We're expecting more shortly!
  32. LM4250 Sour VCF 2016 Re-release
    Blue Lantern LM4250 Sour VCF 2016 Re-release 6hp
    $150.00

    In Stock Available immediately!
  33. Phobos Lunar VCF
    Blue Lantern Phobos Lunar VCF
    $225.00

    Arriving Soon We're expecting more shortly!
  34. Spacemoth V3 Eurorack Filter
    Blue Lantern Spacemoth V3 Eurorack Filter 10hp
    $250.00

    In Stock Available immediately!
  35. Steiner 10 Stage VCF (Re-release)
    Blue Lantern Steiner 10 Stage VCF (Re-release) 6hp
    $135.00

    In Stock Available immediately!
  36. Cloak & Dagger Filter + Distortion
    Conjured Circuits Cloak & Dagger Filter + Distortion 12hp
    $225.00

    In Stock Available immediately!
  37. Cloak & Dagger Filter + Distortion
    Conjured Circuits Cloak & Dagger Filter + Distortion 12hp
    • B-STK
    $205.00

    In Stock Available immediately!
  38. DSM01 Curtis Filter
    Dave Smith Instruments DSM01 Curtis Filter 8hp
    • DEMO
    $160.00

    In Stock Available immediately!
  39. Saber SEM Filter
    Delta Sound Labs Saber SEM Filter 8hp
    $150.00

    Arriving Soon We're expecting more shortly!
  40. Filtare SEIII Multimode Filter
    Division 6 Filtare SEIII Multimode Filter 8hp
    $250.00

    Arriving Soon We're expecting more shortly!
  41. A-100 Basic System 1 (G6 Case)
    Doepfer A-100 Basic System 1 (G6 Case)
    $2,549.00

    Special Order Arrives within 1 - 2 weeks
  42. A-100 Basic System 1 (LC6 Case)
    Doepfer A-100 Basic System 1 (LC6 Case)
    $2,399.00

    Special Order Arrives within 1 - 2 weeks
  43. A-100 Basic System 1 (LC9 Case)
    Doepfer A-100 Basic System 1 (LC9 Case)
    $2,499.00

    Special Order Arrives within 1 - 2 weeks
  44. A-100 Basic System 1 (P6 Case)
    Doepfer A-100 Basic System 1 (P6 Case)
    $2,549.00

    Special Order Arrives within 1 - 2 weeks
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