How many dedicated lines?

As Bob (above) suggests, wire really is directional soundwise. I put in a sub-main and then ran four dedicated lines from the sub-main to four Hubbell duplex outlets.

Well the 60 ft. of stranded 6 ga. wire from the main to the sub-main was definitely directional. When run one direction, music was very soft and uninvolving, but when I reversed the wire and listened, music was much more live, dynamic and natural (BTW, I did this testing with this large wire out of the wall, ie before final installation).

I learned of this from Redkiwi, and just had to try it out. I'm a believer. Yes, 6 ga. wire is overkill, but I already had it. I also put in a dedicated ground from the sub-main, but am having a problem with my amps humming-- still working on that. I think Docroc gives good advice there. Good luck. Craig

I agree with Bob Bundus and his suggestion on how many and what type of lines to run. I am not sure I agree about break-in of AC power lines (call me a skeptic if you will) and definately disagree about an isolated ground due to code violation and safety issues. Ground has to be tied back to the box somehow. Legally you can not have 2 separate and isolated ground systems being feed by one service. At least not here in New York.

Liguy; I had my whole dedicated system installed by a licensed electrician from a reputable business here in Oregon, and they had no problem with grounding the sub-main box. I assume you're referring to my post? Craig.

You can do a dedicated "ground" for your audio system so long as EVERYTHING connected to it is on the same ground. In other words, using a dedicated ground for just the amps and then having your sources, preamp, etc... tied into the common house ground WILL result in a hum and a possible safety hazard. Same thing goes for an audio system that does double duty as an HT system. If the TV, Satellite, DVD, etc... is tied into the house ground and the audio system is on a dedicated ground, once again, you've got problems. In other words, ANYTHING that is connected to the preamp or mode selector HAS to be tied to the same ground to work properly, minimize noise and be safe. Individual electrical codes may have a LOT more to say, so be careful and investigate first. Sean
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Sean and Liguy; Thanks for the input re grounding. I've got a call into the electrical company that installed my system to clarify this grounding issue. Craig.