The Optodist is based on two Silonex 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 designed for and supplied with SR2 (no longer offered in kits/assembled) and SR3 optocouplers, the latter giving a tighter, snappier CV response and slightly less bleed. 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.
Professionally built, mind condition.