The Instruo Vinca is a two channel voltage controlled amplifier with both parallel and series routing capabilities. Each VCA has a different architecture allowing them to offer unique functionality that both contrasts and compliments one another.
The top VCA has Input Bias and Input Attenuverter controls over its four-quadrant multiplication capabilities (ring modulation).
The bottom VCA has an amplitude control that also acts as a CV attenuator when control voltage is applied. The bottom VCA also includes a Shape control that morphs between linear and exponential response curves. Each channel can be used independently (in parallel) or can be cascaded (in series), by flipping the Mode switch.
Chain one Vinca to another (and another, and another!) to add mixing and routing schemes dispersed throughout your entire system.
Power: 5mA @+12V / 5mA @-12V