The Noise Engineering Viol Ruina (Black) is a Module for Eurorack Synthesizers which combines a 24dB Low-Pass Filter with a malicious Distortion Circuit. The upper part of the Module is a classic Analogue Filter to which an Envelope Follower and a Feedback Circuit have been added. The lower part of the Module is the domain of the Distortion. The pre-wired Signal Path passes the incoming Audio Signal through the Low-Pass Filter first and then through the Distortion. With the help of a Patch Cable, the Signal Path can be reversed or the 2x Units can simply be used in parallel.