What wire to use instead of Romex

If you want to shield the twisted pair more than it is naturally, run it in copper pipe.

Please be kind to the demo crew that will take your house down in 10 or 25 years and don't do this. There's a reason specific, easily identifiable conduits exist for each purpose: so that future workers will know at a glance what's in it. Running power conductors inside plumbing tubing is complete idiocy.

A Master Electrician can answer all of your questions and source materials that mere mortals will struggle to find.

I just stumbled across this thread, I went thru this earlier this year.  I bought a large amount of bulk Audience Hidden Treasure AC wire for 4 runs from a panel to my Audio room.  My electrician was smarter than me, he added a 50 A sub outside the Audio room that made for very short runs of the Hidden Treasure.

First, I would suggest if you are going thru the trouble of adding a dedicated line make it at least 3.  One for your amp ( I have monoblocks so I added one for each), one for your digital and one for analog.  The one thing I was told about this was to make sure they were all on the same leg (Phase?) of the panel.  Not an electrician so don't know what that means.

Second,  I have a lot of the Hidden Treasure, PM me if you want a good deal on it.  I can show you the invoice from The Cable Co.

First, I would suggest if you are going thru the trouble of adding a dedicated line make it at least 3.

@rikkipuu 

I actually plan on doing two duplex outlets. One for the power amp and the other for my Niagara 1200 which has my preamp, DAC and streamer plugged into it.  My TV and a couple of other things will remained plugged into my 79 cent 15 amp Home Depot outlet running off of a subpanel along with umpteen other outlets on the same circuit. 

The one thing I was told about this was to make sure they were all on the same leg (Phase?) of the panel.  Not an electrician so don't know what that means.

I've been told that that's a good idea too. I have a vague idea of what the means, and in a traditional panel with two bus bars, I know that mean to run both breakers off of the same bar, but with my new-fangled panels (see photos above in thread), I'm not sure how to tell whether or not two breakers are on the same leg/phase. I'll certainly clear that up before any work is done. I had an electrician come out the other day who said that the two side-by-side spots in my bottom panel would be on the same phase but couldn't explain to me how he knew that, so that didn't inspire confidence.  I have someone else coming out in about 2 weeks who's the nephew of a friend of a friend who is licensed and, by all accounts, knows what he's doing.

My electrician was smarter than me, he added a 50 A sub outside the Audio room that made for very short runs of the Hidden Treasure.

Given the layout of my home, a new subpanel would need to be on the wall right between my new outlets (at the same height and I'm guessing surface mounted) or above my garage door in my garage to shorten the run. I don't think I'd like the look of a panel on the wall below the windows in my living room even if it'd be mostly hidden by my TV/hi-fi stand and gear, and I doubt the HOA would like one on the garage wall above my garage door. It'd be a great idea given the right layout though. I took a rough measurement: the total distance from panel to outlet(s) is about 20 to 25 feet. I'll be in touch about the Audience cable.  Thanks!