Doepfer A-121SV Stereo Multimode Filter - Vintage 1u modular In Off position the VCA

In Off position the VCA does not go to the outputs

and quality that made the Wiard 300 series legendary

Introducing Subway

Alternate firmware files can be written with Pure Data

Parameter changes are handled with crossfades to achieve smooth transitions without pitch modulation or artefacts

Doepfer A-121SV Stereo Multimode Filter - Vintage 1u modular In Off position the VCAModule A 121s is a dual multimode filter which can be used for stereo applications as well as for parallel or serial organized dual mono filters. The core is a 12dB multimode filter identical to the modules A 121 2 and A 121 3. The selection of the filter type is continuously from lowpass via notch and highpass to bandpass. We attached great importance to the usability of the manual controls and CV inputs for both stereo and dual mono applications.