Black Quad VCA 2

The Erica Synths Black Quad VCA 2 is a high-density and feature-rich voltage-controlled amplifier that provides four independent VCAs in a single, compact Eurorack module. This second-generation version has been redesigned to offer even more flexibility and control, making it an essential building block for any modular system. Whether you need to control the volume of multiple audio signals, create complex modulation routings, or build a polyphonic synth voice, the Black Quad VCA 2 delivers with precision, clarity, and a wealth of useful features.

The Black Quad VCA 2 features four high-quality, low-noise VCAs, each with its own dedicated CV input and a response curve that can be switched between linear and logarithmic. This allows you to tailor the response of each VCA to the specific task at hand, whether you're controlling audio levels (where a logarithmic curve is often preferred) or processing CV signals (where a linear curve is typically more suitable). The module also features a mix output that combines the outputs of all four VCAs, allowing it to be used as a four-channel voltage-controlled mixer. This is incredibly useful for creating complex and evolving soundscapes, as well as for sub-mixing signals before they are sent to other destinations in your system. A unique feature of the Black Quad VCA 2 is its "CV BIAS" control. This allows you to set a baseline level for the VCAs, so they can be either fully closed or partially open when no CV is present. This is particularly useful for creating drone-based textures and for fine-tuning the response of the VCAs to your modulation sources. With its high density, flexible feature set, and pristine audio quality, the Black Quad VCA 2 is a true workhorse of a module that will find a home in any Eurorack setup.

Features

• Four independent, high-quality VCAs in a compact module.
• Switchable linear/logarithmic response curve for each VCA.
• Mix output for use as a four-channel voltage-controlled mixer.
• "CV BIAS" control for setting the baseline level of the VCAs.
• Low-noise design for transparent and high-fidelity audio performance.
• An essential and versatile building block for any modular system.