DIY level control kit for LUCIA installation amplifiers. Panel-mount potentiometer with white knob, Euroblock receptacle, and cable connector — wires directly into the GPI port on any LUCIA model. Configurable for single-channel or ganged output attenuation, letting integrators build custom wall plates, lectern panels, or under-counter controls to suit the install. Available in EU and US wall-enclosure variants so the finished assembly drops into standard back boxes.