Designer in wall wiring - worth it?

Copper is a better conductor than aluminum. Copper’s available fault current will be higher than aluminum wire. Less Line impedance... Therein a fault current event is more likely to blow their utility power transformer up if copper was used. The power company would rather like the aluminum wire to burn free at a termination, breaking the fault circuit or give the High Line Fuse time to blow, killing their power transformer...

@jea48 and I thought they just did that these days because aluminum is cheaper than copper. Thanks for the explanation. 

Well aluminum is cheaper than copper. And it weighs a lot less. 

 @erik_squires  While I don’t get on this forum often, I generally respect what you have to say. Your comments here about specialty in-wall cables are disappointing. The Audience Hidden Treasure In-Wall cable has a lot more technology embedded in it than simply being a shielded cable. There is more information about it in the review, should you care to read it, and on the manufacturer’s website.

Even more germane is the suggestion, often echoed on this forum, that you speak truth from personal experience. I encourage you to try it. I have found that the installation of a Romex dedicated line was very worthwhile, and the subsequent installation of the Audience Hidden Treasure greatly improved upon the Romex. With proper installation, the risk of using this cable is far less than driving a car to work.

To address the OP, for a 15' run, or even two 15' runs, the cost of the cable will likely be a very small percentage of the overall cost of your system.

Yes, totally worth it; for the price point = best money I have spent in my audio room. Total cost cheaper than buying power cords. I had a master electrician upgrade my electrical panel, house grounding, and then run two dedicated lines to my room...also new upgraded wall outlets. A noticeable improvement in my system...instantly. I gave the electrician a "go by" to use as reference = one others have posted here on Audiogon. We discussed it in-depth and he followed it perfectly.

Dedicated AC power lines and wall power improvements for audio.
– updated 8/2024 – By Vince Galbo
 

@jmrrobbie1 

This thread is specifically discussing the merits of using in-wall audiophile grade romex. 

Was this installed in your system?