One acquaintance, who is a contractor and an audiophile, ran a dedicated line. He then ran an isolated ground going to a copper grounding rod he drove into the ground with his rotary hammer -- Home-Depot stuff. He said he thought the isolated ground did more to clean up sound than having the dedicated line. As far as insulating from AC-noise producing appliances, it has always seemed to me that everything in the house wires together with your dedicted line at the breaker box anyway -- that's how home networking systems can go through household wiring. My understanding of the benefit of the dedicated line is if you have other power-hungry appliances on the same circuit, competing with your amp, and to go up to a 20 amp circuit from a 15 amp circuit.
I recently moved my system into another room, and now when I power up the SFS-80 amp, the outside flourescent light fixtures momentarily flick off, so maybe I do need a dedicated line!
Tom
I recently moved my system into another room, and now when I power up the SFS-80 amp, the outside flourescent light fixtures momentarily flick off, so maybe I do need a dedicated line!
Tom