VCA

The MHIC-VCA2 implements two high fidelity, low noise, multi-mode Voltage Controlled Amplifiers.

Panel Functionality of the dual analog VCA

Modulation Source Input: When either an audio or control signal is routed from the Program Source Input to the Program Output jack, the signal applied to the Modulation Source Input jack controls the program level (if audio, “Volume”). Typical Modulation sources are LFO’s, Envelopes, and foot pedal controllers.

Mode Switch: This panel switch controls whether the VCA responds to the Modulation Source with linear or exponential response. The Linear response being typical for VCA’s, the Exponential mode provides for dynamic percussive events.

The Modulation Level: This panel control is an input attenuator. It is not uncommon for Euromodules to provide eccentric levels, especially for envelopes. The VCA is characterized for 5 Volt Modulation Sources. Sources of greater voltage swing can be attenuated to achieve proper operation for this module.

When no modulation source is jacked into the VCA, an internal voltage is normalled to the Modulation Level Control to allow manual level setting or to allow the preview of a patch configuration in progress.

The Program Source Input: Being D.C. coupled, the VCA can process either audio or control program inputs. The typical input signal range includes up to +/-5 volts inputs. Signals that exceed this level will distort. Signals exceeding +/-12 volts will damage the module.

The Program Output: VCA inputs will emit from the Program Output jack at a level directly responsive to the signal state at the Modulation Input Jack. When +5 VDC is applied to the VCA, the signal path from the Program Input to Program Output is unity gain (0 dB attenuation).

Specification:-

• Panel size: 4HP