Phobos D'thorga 
@hiddensoul said that he'd help me test the THD (i.e. Total Harmonic Distortion) of my sound system sometime, which is just so cool to think of! ^,==,^
I forget the equipment that he mentioned which is involved, but admittedly, it is a bit beyond me with my electrical #engineering skills >,==,>;;
Most of what I've learned is through experimentation with #AmateurRadio and with creating little circuits in #KiCAD.
But yeah, this is something I'm looking forward to~!
hiddensoul