This exciting Eurorack filter creates a myriad of sonic opportunities from one single sound source. Filter any audio input and turn it into a lead synth, sub-bass, or anything in-between through the beauty of subtractive synthesis! Compatible with all of your other Eurorack hardware, the ‘Sallen Key‘ emulates the old school Korg MS20 filter to add some retro colour and warmth to your oscillators.
Including separate high and low pass filters, this module utilises the iconic Sallen-Key filter topology. This method is advantageous because of its independence – each filter works entirely separately without changing the tuning of the other. This filter format is based on the classic Korg MS20 analogue synth, bringing some authentic early 80s harmonics to your synth sound.
This device can also self-oscillate (or create its own sound through resonance) making it a melodic part of your Eurorack setup on its own. The Sallen Key design uses a non-linear feedback path to avoid clipping whilst in self-oscillation mode. The maker has chosen to use integrated LEDs instead of diodes, which is brilliant as it both changes the resonance’s colour and gives the user visual feedback!
This module comes on a beautifully designed black and white PCB, featuring a cryptically wonderful image of what could be a sea creature. This well thought-through design carries through to the included black potentiometer knobs and considered text labels, making it a very satisfying piece of hardware to both look at and use!
Black Noise are an independent electronics manufacturer based out of Dijon, France, and are able to ship anywhere in the world. New to Tindie, they’re selling a variety of exciting Eurorack modules on their storefront. A great place to start building your own Eurorack setup!
