Erica Synths Black Modulator V2
LFO, noise, and S&H powerhouse for live modulation
10 HP Eurorack module
The Erica Synths Black Modulator V2 is a combined modulation and noise source featuring a dual-range LFO with three simultaneous waveform outputs, a Zener diode-based noise generator delivering white, pink, and crushed noise flavours, and a clockable sample-and-hold circuit. Its character ranges from slow, dreamy modulation to chaotic audio-rate weirdness, with the noise crush section capable of producing everything from dense 1-bit noise to sparse random trigger bursts. Designed for live performance with large knobs and deep patching flexibility, it excels at generative, industrial, and experimental sound design.
Features
- LFO with simultaneous saw, triangle, and pulse waveform outputs
- LFO/audio frequency range switch covering 0.2 Hz to 750 Hz
- External clock synchronization with RATE knob acting as frequency multiplier or divider in sync mode
- Zener diode-based noise generator for full-spectrum white noise
- Pink noise filter output
- Noise Crush knob fading from 1-bit noise to sparse random trigger bursts
- Crushed noise output
- Clockable sample-and-hold circuit using a rare, high-quality S&H chip
- S&H CV input normalled to white noise output
- S&H clock input normalled to LFO
- CV Level knob attenuates S&H input level
- All inputs and outputs protected against overvoltage
Controls & Jacks (16)
- CV Level — Attenuates S&H input level. When nothing is patched in CV IN, adjusts S&H output amplitude from white noise.
- Pink Noise — Pink noise output with integrated filter.
- Noise Crush — Controls crushed noise flavor, fading from 1-bit noise to individual random trigger bursts.
- Rate — Controls LFO and S&H clock frequency. In sync mode, works as frequency divider (÷2, ÷4 counterclockwise) or multiplier (×2, ×4 clockwise).
- CV IN — S&H circuit input for CVs or audio signals. Normalled to white noise output.
- Crushed Noise — Noise crush output, variable from 1-bit to trigger bursts.
- White Noise — Zener diode-based white noise output (10Vptp).
- Triangle — Triangle LFO output (-5V to +5V).
- Sync — External clock input to synchronize LFO frequency.
- Pulse — Pulse LFO output (-5V to +5V).
- S&H — Sample and hold output, up to 20Vptp.
- CLK IN — External S&H clock input. Normalled to LFO if nothing is patched.
- LFO/Audio Range — Selects between LFO mode (0.2Hz - 25Hz) and audio rate mode (18Hz - 750Hz).
- LED — Visual feedback blinks at LFO frequency
- SAWTRI — Sawtooth LFO output (-5V to +5V).
- S&H OUT — Sample and hold output, up to 20Vptp.
How-To Guides
- Classic Triangle LFO Vibrato
- Random Stepped Melody via S&H
- Clock-Synced LFO Modulation
- Pink Noise Atmosphere Layer
- 1-Bit Crushed Noise Percussion
- Audio-Rate S&H Ring Modulation Effect
- Sparse Random Trigger Generator
- Stepped CV from External Sequencer
- Rhythmic Gate from Pulse LFO
- Noise Filtered by LFO-Swept VCF
Explore the interactive Black Modulator V2 panel on BleepDex — tap any control to learn what it does.
