Duofonik DIY

dual FONIK SSM2044 filter

DuoFonik is a dual version of the Fonik SSM2044 board (with some added spice)

Due to the cost and scarcity of SSM2044 ICs This is a DIY project only, you must provide a panel. There is a euroadapter board to build a euro version without wiring.

here is Richard Brewsters build noted for the 5u version. http://pugix.com/synth/neutron-duofonik-vcf/

The main differences are that both filters can be controlled together, inverting inputs are available, and the mix output.

Used in combination, this allows the output to be not only low pass, but high pass and band pass like as well.

http://neutron-sound.com/duofonik.html