L-1 Discrete Quad VCA

Voltage controlled four channel amplifier/mixer based on discrete Blacksea VCA circuitry.

Individual outputs are provided for each channel. In addition, there are three different sum outputs:
-channel 1+2
-channel 3+4
-All

Each channel can be switched between linear and exponential characteristic.

As usual for L-1, the module has a board-protecting aluminum back plate and is built from only high quality components.