The only advantage to dedicated lines is the fact that you have more available power.However audio components use very little power so I doubt it is neccessary unless you are running multiple amps for a H.T setup as I am.
A dedicated line does not isolate noise as many audiophiles imagine.I have no idea where they get this idea from.All the wires in your house meet back at the fuse panel and so they all share the same bus bar and therefore share feedback.
A dedicated line does not isolate noise as many audiophiles imagine.I have no idea where they get this idea from.All the wires in your house meet back at the fuse panel and so they all share the same bus bar and therefore share feedback.