OP,
Yep, you got it. Hopefully you take the complexity as a challenge and enjoy getting the most out of your system through listening and learning. That is what drives most of us.
I am sure over my lifetime I have spent over a thousand hours, testing, evaluating and reading about different cables. They have made major contributions to the overall sound quality of all my systems. To calm down the harshness and high frequency tipped sound when my components were inexpensive and now to be incredibly transparent to bring through the full capability of my outstanding components.