qvca

This is quad VCA which is designed only for audio use (unlike the standard Tangible Waves 2VCA which can be applied to both audio and CV signals).

Each CV input has a corresponding inverted output, so that with a single input CV it is possible to cross fade between signals. The four VCAs are also a perfect match for the wonkystuff moco panning-controller module.

https://wiki.aemodular.com/pmwiki.php/AeManual/WonkyStuffQVCA

https://wonkystuff.net/product/qvca-black/