Expander module for Graphic Resonant Filterbank

The Expander module (works exclusively with the Graphic Resonant Filterbank and is available separately) provides hands-on adjustment over all bands’ boost and cut without the need to select bands via pushbuttons on the Graphic Resonant Filterbank module. This makes sound design with the Graphic Resonant Filterbank much easier.

https://www.ericasynths.lv/shop/eurorack-modules/by-series/graphic-series/graphic-resonant-fb-expander/