RYO Optodist v1.1 DIY Black Version



July 2020 Update: We have reached agreement with RYO founders to be able to exclusively offer panels, pcbs and full kits for the RYO series of eurorack DIY modules. 

A compact, easy to use, easy to build and great sounding distortion module which will also work as a VCA if desired.

The Optodist is based on two optocouplers that gives its characterful overdriven sound and plucky dynamic response to CV, it is equally at home adding a bit of extra crisp to highs and mids or warming up your lows as it is turning a resonant filter into a howling beast or your drums into crushing carnage. The Optodist has been supplied with Xvive VTL5C3 vactrols.  Please note that due to the nature of the vactrol-style optocouplers, response behaviour may vary between different factory batches.

Also on board is an LED based limiter circuit which limits the signal thru a set of 4 LEDs which can be seen on the panel, for adding a different flavour to your distortion, the choice of LEDs is up to you, experimenting with different types will affect the sound.

The Optodist is a novice-friendly project, it is a low part count, single-PCB build that only requires the most basic experience in PCB soldering and module assembly. Kits comes supplied with PCB, front panel (PCB material), component kit, knobs, power cable and mounting screws. Solder and tools are not supplied



On Demand Info

These kits and assembled modules are offered on demand, click the link to learn more.

Kit Parameters
Build DifficultyEasy
Parts Count50
SMT parts0
Module Parameters

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  • Product Code: RYOOPTOMSTR
  • Availability: 96
  • from $10.00 TO $129.00
  • Ex Tax: $10.00

Available Options

In stock / $15.00
Available : 15
In stock / $10.00
Available : 54
In stock / $25.00
Available : 15
synthCube assembled, new
In stock / $129.00
Available : 8
synthCube kit
In stock / $89.00
Available : 4

Tags: ryo, optodist, v1.1, diy, vca, ryooptomstr, (ljunggren, audio) synthesizer, kits black, version