Choice of Wire for Dedicated Line

I have experimented over the last 6 months with various wires to use for dedicated 20-amp circuits. I have the following wire in use in no special order:
1) 10 gage Romex
2) 10 gage UV
3) Belden 83802
4) Virtual Dynamics 10 gage BX Cryogenically treated with Cryoed circuit breaker. *

I have not tried the following but I’m sure it works, 10 gage solid THHN (white/black/green) manually (electric drill) spiral twist and snake through conduit.

To my ears on my revealing system I hear NO difference between (1-4)! I think simply using a dedicated circuit with 10 gage copper makes the biggest difference. I also think Gs5556 over the year’s gives excellent electrical advice.

I hope all that read this find it helpful, it’s cost me about $500 (out of my own pocket) to complete the testing for my own peace of mind.

* There might be other positive factors to using cryogenically treated wiring besides sonics. It might lower the operating temperature of equipment.

Ern, It is possible that the Beldon 83802 will improve with more time on it. I'll continue to burn it in and get back to you in a few days. I'm using a run of 43'.

A year ago I read posts from Redkiwi and others regarding Romex etc being directional. I tested the Romex and UV both directions. Redkiwi and others are correct, it does sound better run one direction versus the other. You have to try it both directions to see what sounds better!

OK, I’m sure the 43’ run of Belden 83802 is burned in and sounding good. In a blind A/B comparison test Belden 83802 (v) 10 gauge solid UV and Romex with identical Hubbell 8200 cryoed outlets I cannot hear a difference, they all sound good! That’s not saying anything negative about any wire.
I would guess that if one were to make a power cord, the Belden 83802 would be the way to go, as a matter of fact I own one and really like it!