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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 Audio.

Brand
  1. ADDAC
  2. Arturia
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  5. Erica Synths
  6. Frap Tools
  7. Intellijel Designs
  8. Koma Elektronik
  9. LMNTL
  10. Make Noise
  11. MDLR Case
  12. Metasonix
  13. Moog
  14. Pittsburgh Modular
  15. Pulp Logic
  16. Roland
  17. Skein Modular
  18. Soundmachines
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  20. Synthrotek
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  24. Waldorf
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  15. Full Voice
  16. In / Out
  17. LFO
  18. MIDI to CV
  19. Mixer
  20. Noise
  21. Oscillator
  22. Patch Cables
  23. Phaser / Chorus
  24. Pitch Effect
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  29. Sample & Hold
  30. Sampler
  31. Sequencer
  32. System
  33. Tube
  34. Utility
  35. VCA
  36. Video
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  1. 902 PSC Rackmont Passive Eurorack Frame Case
    ADDAC 902 PSC Rackmont Passive Eurorack Frame Case
    • USED
    • Sale
    $139.00 $133.00
    In Stock Available for immediate delivery!
  2. Rack Brute Travel Bag
    Arturia Rack Brute Travel Bag
    $79.00

    Coming Soon Reserve your pre-order today!
  3. RackBrute 3U Adjustable Eurorack Case
    Arturia RackBrute 3U Adjustable Eurorack Case
    • DEMO
    $226.97

    In Stock Available for immediate delivery!
  4. RackBrute 3U Adjustable Eurorack Case
    Arturia RackBrute 3U Adjustable Eurorack Case
    $259.00

    In Stock Available for immediate delivery!
  5. RackBrute 6U Adjustable Eurorack Case
    Arturia RackBrute 6U Adjustable Eurorack Case
    $359.00

    In Stock Available for immediate delivery!
  6. Knurlies (100 PACK)
    Befaco Knurlies (100 PACK)
    $40.00

    Arriving Soon We're expecting more shortly!
  7. A-100 Beauty Mini Case
    Doepfer A-100 Beauty Mini Case
    $140.00

    Arriving Soon We're expecting more shortly!
  8. A-100 Beauty Mini Case (Raw Wood)
    Doepfer A-100 Beauty Mini Case (Raw Wood)
    $120.00

    Arriving Soon We're expecting more shortly!
  9. A-100 DIY Eurorack Case Kit
    Doepfer A-100 DIY Eurorack Case Kit
    $195.00

    In Stock Available for immediate delivery!
  10. A-100 G6 Rackmountable Eurorack Case - 6U
    Doepfer A-100 G6 Rackmountable Eurorack Case - 6U
    $530.00

    Arriving Soon We're expecting more shortly!
  11. A-100 LC6 Low Cost Case - 6U
    Doepfer A-100 LC6 Low Cost Case - 6U
    $390.00

    In Stock Available for immediate delivery!
  12. A-100 LC9 Low Cost Case - 9U
    Doepfer A-100 LC9 Low Cost Case - 9U
    $460.00

    In Stock Available for immediate delivery!
  13. A-100 LC9V Low Cost Case PSU3 (Vintage Series) - 9U
    Doepfer A-100 LC9V Low Cost Case PSU3 (Vintage Series) - 9U
    $549.99

    In Stock Available for immediate delivery!
  14. A-100 LCBV Low Cost Base PSU3 (Vintage Series) - 6U
    Doepfer A-100 LCBV Low Cost Base PSU3 (Vintage Series) - 6U
    $549.99

    In Stock Available for immediate delivery!
  15. A-100 Low Cost Base - 6U
    Doepfer A-100 Low Cost Base - 6U
    $490.00

    In Stock Available for immediate delivery!
  16. A-100 P6 Portable Case - 6U
    Doepfer A-100 P6 Portable Case - 6U
    $530.00

    In Stock Available for immediate delivery!
  17. A-100 P9 Eurorack Case - 9U
    Doepfer A-100 P9 Eurorack Case - 9U
    $675.00

    In Stock Available for immediate delivery!
  18. A-100 PBSW Suitcase Base - 6U
    Doepfer A-100 PBSW Suitcase Base - 6U
    $775.00

    In Stock Available for immediate delivery!
  19. A-100 PMBsw Monster Base
    Doepfer A-100 PMBsw Monster Base
    $1,200.00

    In Stock Available for immediate delivery!
  20. Aluminum Travel Case - 208HP
    Erica Synths Aluminum Travel Case - 208HP
    $899.00

    In Stock Available for immediate delivery!
  21. Case - 6U 84HP THICK (Internal 2.5A PSU)
    Erica Synths Case - 6U 84HP THICK (Internal 2.5A PSU)
    • DEMO
    $422.00

    In Stock Available for immediate delivery!
  22. Case - Rack Ears - SKIFF or THICK
    Erica Synths Case - Rack Ears - SKIFF or THICK
    $19.00

    Arriving Soon We're expecting more shortly!
  23. Case - Wood Sides - 1x 6U THICK
    Erica Synths Case - Wood Sides - 1x 6U THICK
    • B-STK
    $25.97

    In Stock Available for immediate delivery!
  24. Case - Wood Sides - 2x 6U SKIFF
    Erica Synths Case - Wood Sides - 2x 6U SKIFF
    • Sale
    $39.00 $26.97
    In Stock Available for immediate delivery!
  25. Monster Case (w/ Integrated PSU & Light Sides) - 252HP
    Erica Synths Monster Case (w/ Integrated PSU & Light Sides) - 252HP
    • DEMO
    $531.97

    In Stock Available for immediate delivery!
  26. Monster Case w/ Integrated PSU + Dark Sides - 252HP
    Erica Synths Monster Case w/ Integrated PSU + Dark Sides - 252HP
    $599.00

    Arriving Soon We're expecting more shortly!
  27. Monster Case w/ Integrated PSU + Light Sides - 252HP
    Erica Synths Monster Case w/ Integrated PSU + Light Sides - 252HP
    $599.00

    Arriving Soon We're expecting more shortly!
  28. Pico Case - 42HP
    Erica Synths Pico Case - 42HP
    $189.00

    In Stock Available for immediate delivery!
  29. Skiff Case (w/ Integrated PSU) - 84HP
    Erica Synths Skiff Case (w/ Integrated PSU) - 84HP
    $279.00

    Arriving Soon We're expecting more shortly!
  30. Skiff Case + Dark Horizontal Sides - 168HP (NO PSU)
    Erica Synths Skiff Case + Dark Horizontal Sides - 168HP (NO PSU)
    $349.00

    In Stock Available for immediate delivery!
  31. Skiff Case + Dark Vertical Sides - 168HP (NO PSU)
    Erica Synths Skiff Case + Dark Vertical Sides - 168HP (NO PSU)
    $349.00

    Arriving Soon We're expecting more shortly!
    Out of stock
  32. Skiff Case + Light Horizontal Sides - 168HP (NO PSU)
    Erica Synths Skiff Case + Light Horizontal Sides - 168HP (NO PSU)
    $349.00

    Arriving Soon We're expecting more shortly!
  33. Skiff Case + Light Vertical Sides - 168HP (NO PSU)
    Erica Synths Skiff Case + Light Vertical Sides - 168HP (NO PSU)
    $349.00

    In Stock Available for immediate delivery!
  34. Skiff Case w/ Integrated PSU + Dark Horizontal Sides - 168HP
    Erica Synths Skiff Case w/ Integrated PSU + Dark Horizontal Sides - 168HP
    • DEMO
    $381.97

    In Stock Available for immediate delivery!
  35. Skiff Case w/ Integrated PSU + Dark Vertical Sides - 168HP
    Erica Synths Skiff Case w/ Integrated PSU + Dark Vertical Sides - 168HP
    • DEMO
    $386.99

    In Stock Available for immediate delivery!
  36. Skiff Case w/ Integrated PSU + Dark Vertical Sides - 168HP
    Erica Synths Skiff Case w/ Integrated PSU + Dark Vertical Sides - 168HP
    $429.99

    Arriving Soon We're expecting more shortly!
    Out of stock
  37. Skiff Case w/ Integrated PSU + Light Vertical Sides - 168HP
    Erica Synths Skiff Case w/ Integrated PSU + Light Vertical Sides - 168HP
    $429.99

    Arriving Soon We're expecting more shortly!
    Out of stock
  38. PLUS Module Case - 42HP
    Frap Tools PLUS Module Case - 42HP
    $69.90

    In Stock Available for immediate delivery!
  39. Plus Row Extension Pack - 4 x 42HP
    Frap Tools Plus Row Extension Pack - 4 x 42HP
    $249.90

    In Stock Available for immediate delivery!
  40. Plus Wood Sides - Dark
    Frap Tools Plus Wood Sides - Dark
    $39.90

    Arriving Soon We're expecting more shortly!
  41. Plus Wood Sides - Light
    Frap Tools Plus Wood Sides - Light
    $39.90

    In Stock Available for immediate delivery!
  42. Plus Wood Sides - Spotted
    Frap Tools Plus Wood Sides - Spotted
    $39.90

    Arriving Soon We're expecting more shortly!
  43. Ø3 Black Plastic Washers (100 Pack)
    Frap Tools Ø3 Black Plastic Washers (100 Pack)
    $9.90

    In Stock Available for immediate delivery!
  44. 4U 104HP Powered Case
    Intellijel Designs 4U 104HP Powered Case
    $319.00

    In Stock Available for immediate delivery!
  45. 4U 42HP Powered Case
    Intellijel Designs 4U 42HP Powered Case
    $199.00

    Arriving Soon We're expecting more shortly!
  46. 4U Case Joiner Plates
    Intellijel Designs 4U Case Joiner Plates
    $39.00

    In Stock Available for immediate delivery!
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