Grit

LP/HP voltage-controlled analog filter with parallel saturation

Grit is a voltage-controlled analog filter with a high pass & low pass switch, grit has an x2.5 gain at the input driving into a limiter, this can add some serious fastness to the signal while also keeping the audio in the sweet spot range for the filter, an LED indicates when the limiter is active, pre-filter there is the “GRIT” button, a unity gain distortion adding extra harmonics and character while maintaining the same level (when the limiter is active), Post filter grit has a parallel Saturation allowing you to dial in the perfect blend of saturation.

https://www.britishnoise.co.uk/home/p/grit-analog-filter