The fewer the number of lines, the less risk you run producing ground differentials and loops which may induce hum into your system. My two channel audio system performs best on a single circuit.
How many dedicated lines?
I'm planning on running some dedicated 20 Amp power lines to my audio/home theater system. My question is how many separate lines should I run? I've heard of one audio system where every component practically had its own line. Is that overkill? Would two or three lines suffice for an entire system? In all, I have about 11 different components that need to be plugged in. Thanks for your help.