I like to learn too and learned a lot from others sharing their wins too. I still have to learn more about the RPi and programming it. I like to get a good Room EQ installed. Any tip on this is appreciated.
I have been tweaking speakers and audio equipment for quite some years, but I must admit these RPi:s are fun to tweak!
I have another tweak in the pipeline too - adding a Class A non-feedback balanced output direct from the DAC output. It´s LC Audio´s ZAPfilter 2, a really nice one. It´s without OP:s, just pure transistors. That might just set everything up into the strata...