AI Synthesis AI004 Eurorack Module

I have an MS20 Mini that I love and this filter comes very close to the real (reissue) thing to my ears. You be the expert, but in any case I think this is a very musical and fun module. The demo shows some versatile uses for it. The video is the same one I use to showcase the ADSR, because they work so well in tandem, with a good modulation source for the filter cutoff to get percussive sounds and bass lines (you know!)

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A Loving Tribute to the MS 20 Filter.

This OTA Voltage Controlled Filter uses the same filter structure as the venerable Korg MS 20 Filter. The filter is switchable between Lowpass and Hi Pass modes, and features an updated diode gain stage in the resonance section. This circuit was adapted by Sagittronics, who does excellent work.

The VCF will overdrive and distort in both the HP and LP modes, and the resonance can self-oscillation. As with the MS 20 Filter, the Low Pass slope is 12dB/octave and the High Pass slope is 6dB/octave. The CV input is an attenuverter, allowing for dynamic control-voltage of the cutoff.

All jacks, knobs, and other components are soldered directly to the PCB. There is no wiring, making this kit ideal for those who have built a simple module before, and are looking for a high quality, legendary filter in an easy to build package.

We recommend this kit as the third or fourth module you build. It is easy, and can be built in a single sitting. If it works, you are ready to build other modules.

The Eurorack DIY OTA Filter Kit Contains everything you need to build your DIY Analog Synth Module: