Here I’ve had the pleasure of working with the very high quality, great feeling, great sounding M-4 Advanced Stereo Mixer from Strange Science Instruments. Each channel serves as a great channel high end mixer style VCA with soft colour and then distortion that glues that mix bus/summing together really nicely. You can use the channels and break them out of the mix, CV over volume and pan is great from slow modulation right through audio rates, feedback is very cool and the stereo pass through is a nice way to get 6 channels going.