All four channels are identic, each like an usual VCA with signal input, signal output and a CV input. The potentiometer is used either as a manual gain control or as an attenauator once a cable has been inserted into the CV input.
The Veils' special feature is that each VCA's characteristic is continuously variable from exponential to variable with a small potentiometer. The inputs are DC coupled and accept CV signals as well as audio.
The channel outputs are cascaded from top to bottom and are mixed which meand you might as well use Veils as a voltage controlled mixer for up to four signals.
per channel: signal input, signal output, CV input
3U Eurorack module, 12HP wide, 25mm deep
current draw: 50mA at +12V and 50mA at -12V