DIRT is a lowpass filter with a slope of 12dB/octave and you will find the usual controls for cutoff frequency and resonance. The Bias parameter causes the DIRT to generate interesting and unique effects, similar to ring modualtion and brutal wave shaping. It adds a lot of harmonics, squares up signals. It can even process external, pre-amplified audio.
signal input, signal output, CV input
3U Eurorack module, 4HP wide, 38mm deep