One big factor in avoiding the pickup of power line hum in audio circuits is to keep audio cables away from any power lines, cables or circuits (most notably power transformers). Use good cable ...
I was planning on running the wiring for my new subwoofer amp from the laundry room (where I have a new 30A circuit waiting) to the living room tomorrow. However, I just realized that in my indecision ...
Check any audiophile facebook group or forum and you will find dozens of enthusiasts asking the oh so common question "what are the best cables to use with my audio components?" There are never ...