The AJH Synth Entropic Doom (Black) is an Analogue Noise-Based Oscillator, also called Noisillator. Based on a Noise Source, a Feedback Loop and a Filter, the Tone Generator produces its sounds. The Filter is switchable in 3x Steps between 12, 18 and 24dB, in the latter Mode the "Dark" Output can be tuned; the "Bright" Output is basically tuneable. Thanks to the Sync Input, the Noisillator can be connected to another Oscillator and is therefore the perfect partner for Drone Sounds. The Audio Input allows external Audio material to be integrated into the Module's feedback path. The AJH Synth Entropic Doom also has a fully-fledged Ring Modulator integrated into the Circuit, but it can also be used independently for other Signals in the Modular System.