@amirm But, you have already convinced me to buy a d50 : /. In addition I don't have a balanced headphone amp or receiver. I would have to be convinced.
I think I will design an app to produce equalization files. I can do it with simple Monte Carlo Simulations I'm sure.
Thankfully for me my father has done a huge amount of work with computer vision. It would be completely possible I think. I could also probably design a cheap unit that will eq...