Choice of Wire for Dedicated Line

What ever kind of wire you get it should be shielded... the shielding is what will protect it from the RF. You can get regular household wire 12-2 w/ground for example in a metal shielded version.

A couple of other ideas (assuming you are not going to a higher end audiophile cable that is very expensive), depending on the length of your run you should probably run an extra line at the same time for your Gonzo Krell or ARC amps. Or you can run 12-3 w/ground (for 20 amp service) and use the red line for a second dedicated outlet, eliminating the need for a complete second cable. Also, you should drain to ground the shielding on the cable to further eliminate RF.

Then if you need it, consider conditioning.

I was talking with a guy I know that owns a company that makes power cables about this subject and he recommened steel-shielded BX cable, or at least I think that is what he said he uses for his own lines.

If you want some good advice on this issue,contact Serguei Timotev;he sells stealth audio cables and he helped me chose the wire and gave me great advice on grounding,etc. Doesn't hurt to have another opinion and he can get some wire for you as well.He is active on Audiogon.

Rick at Virtual Dynamics Cryogenically treats the 10 Gauge BX Armoured House wire. Here's the link to the product:
Cryo'd BX Cable

If the Cryo treatment has the same effect as it does on his other cables I'm sure you'll be quite happy at $3.50 a foot for the treated BX :)

Problem with shielding AC is there is a ton of noise in the ground plane. Just 'scope it out and you will see. Some folks would rather use a power regenerator like the PS audio for clean, stable power.