Need a 20' headphone cable

I ended up following Wolf's suggestion from my thread.
Buying a 15ft Grado extension cable that is "guaranteed" to have no signal loss or degradation.
Cost was $50 free ship on eBay.
Now I may still explore a new one piece cable at a later date but for now I am content

Try reading this thread
Might help

https://forum.audiogon.com/discussions/headphone-cable-what-do-you-do