Check the listing for details. Erica Synths Black Modulator v2 Clockable LFO and S&H Eurorack Module. Condition: New. Listed at 139.00 USD. Eurorack Modulation and Noise Source with Three Noise Flavors Part of Erica Synth’s renowned Black Series Eurorack modules, the Black Modulator V2 is an ultra-powerful LFO/audio frequency oscillator, noise generator, and sample & hold module. The Black Modulator V2 outputs sine, triangle, and pulse waveforms, alongside Zener diode-based full-spectrum white noise, pink noise, and crushed noise (which has a separate control knob for cranking up the madness). The unit also supplies a CV/external audio input and a clock input for controlling the sample and hold circuit and syncing the LFO. Synthesists at Sweetwater gravitate to the Black Modulator when they want to inject random pitch variations, rhythmic filtering, dancing pulse widths, and more into their patches.