Designer in wall wiring - worth it?

@invalid said

It features three 10 AWG stranded copper conductors plus a ground making it applicable for 120V and 240V applications plus flexible interlocked aluminum armor.

That’s a horse of a different color...

That is not the cable shown Here Enjoy The Music positive review, or here,  Hidden Treasure In-Wall AC Power Cable on the "Cable Company" Website.

IT sounds like it’s MC (Metal Clad) cable.

Can you provide an ad, website, that shows the cable and a description of the cable’s make-up.

Example:

10/2 x 125 ft. Stranded CU MC (Metal Clad) Armorlite Cable  

I personally would use solid copper wire, Not stranded.  

.

@jea48  I looked this up at Dedicated audio, I don't know if they are correct, but it does say in the literature that it has a ground.

VH Audio / Wire

10-2 Cryogenically Treated Romex (10 AWG) is fantastic for dedicated lines and is UL approved for in-wall AC power use. Deep Cryogenic treatment using a proprietary process developed in conjunction with VH Audio.

10-2 Cryogenically Treated Romex (10 AWG)

10-2 w/g CRYO Romex $3.99 foot.

Burning down the house, yea! My house. Can’t you just hear that song playing in the background?

Burning down the house, yea! My house. Can’t you just hear that song playing in the background?