Cosmix has four mono channels with panning and switchable pre/post aux send, and two stereo channels. These have the left inputs normaled to the right inputs.
All channels have clickless mutes.
The aux output can be routed to an external effect, or used for feedback patching. There is no dedicated return channel, you can use one of the available channels instead.
A unique feature is the dual band drive circuit, inspired by the bbe sonic maximizer.
it has a high and a low band slider, and let's you drive the gain for each in true stereo.
Low drive settings give general sound enhancement, while cranking up the gain creates amazingly rich sounding distortion and interesting clipping behaviour.