Erica Synths Black VCO2 Analogue Voltage Controlled Oscillator Module - Erica Synths

A VCO is a fundamental component in synthesizers where its output frequency is controlled by an input voltage. Changing the voltage changes the pitch of the sound produced.

The waveshaper modifies the harmonic content of the sawtooth wave, adding distortion and complexity. It allows you to sculpt the tone, making it richer, more aggressive, or more dynamic, and can be controlled via CV for evolving sounds.

The Black VCO2 is designed exclusively for Eurorack modular systems. It requires a modular case for power and integration with other modules.

While not a dedicated supersaw generator, the combination of multiple rich waveform outputs (especially Saw and Pulse) and the waveshaper allows you to create dense, layered sounds similar to a supersaw, especially when detuned or modulated.

The module is designed for highly accurate and stable tracking across 8 octaves. This means that for every 1-volt change in the 1V/Oct input, the pitch will shift precisely by one octave.

PWM stands for Pulse Width Modulation. It's a technique used to alter the timbre of a pulse wave by varying the 'width' or duration of the pulse. The Black VCO2 allows manual control and CV control over this parameter.

No, the two built-in LFOs are Low-Frequency Oscillators. They produce slow-moving waveforms (typically sine or triangle) used to modulate other parameters of the VCO or other modules, not to produce audible sound themselves.

Verify power connection and ensure the module is receiving power. Check that audio outputs are correctly patched to subsequent modules (VCA, output mixer) and that those modules are properly configured. Confirm that the oscillator is set to an audible frequency range.

Ensure the module has warmed up for at least 15-20 minutes, as analogue components can drift initially. Verify that CV input attenuators are not introducing unintended modulation. Check for excessive heat in the case, which can affect stability.

Check all CV inputs; ensure excessive modulation is not being applied, or use attenuators. If using FM, check the source signal's level. Experiment with different waveform outputs and waveshaper settings.

Confirm the sync input is receiving a clean gate or clock signal. Ensure the signal level is sufficient. Try a different sync source module to rule out an issue with the source.