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synthesizer builds, mods, and repairs

Do you have an electronic instrument that needs repair or restoration?
Do you want to modify your instrument but would like help with design or creation?

We build, modify, and repair many kinds of electronic instruments:

  • Desktop synthesizers
  • Eurorack and Kosmo modules, through hole and surface mount
  • MIDI and CV controllers
  • Custom enclosures and knobs, 3D printed

contact us

synthmodfix is located in Kansas City, Missouri, USA

clock modules pink knob msw knot europi faceplate assembly nlc sly grogan

headless M8 trackers eurorack thru le strum with case

calibration with rack zeptocore arcade board mod cha/v vga4eva build desktop synth tilt legs lmnc circle drone of doom

expanded lyra 8 voltage sequencer