This following video is a short demonstration of how I turned an old stereo GEQ into a M/S processing system. Please wear headphones for a better understanding of the mid/side processing.
Thanks a lot to my friend Konstantinos Vasilakis for this Technics HiFi unit! I had a great time messing around with it and it actually gave me the inspiration to create a matrix that I can use to turn instantly ANY STEREO hardware to M/S.
A mid/side processing tutorial will hopefully follow soon!