The Tiptop Audio VCA is a full featured, precision calibrated, analog Voltage Controlled Amplifier. At its heart is a novel design of a control circuitry—a function that lets you sweep continuously through three different response curves: Logarithmic, Linear, Exponential—giving you all three shapes in a single module. This special control circuitry design by Mr. Osamu Hoshuyama was adopted into the VCA module to make it a great sounding synthesizer VCA with flexibility to address all duties: level control for both audio and CV modulation, gating audio into silence, and amplitude modulation effects.
A VCA, Voltage Controlled Amplifier, sometimes referred to as an audio gate, is an essential module to any Eurorack and no system is complete without one. The concept is an input, an output and a control that sets how much of the input signal passes through to the output.