Using solid copper Door Bell wire as speaker wire.

I don't think it was labeled specifically as "doorbell" wire, but I have used the thick solid copper "hook up" wire in braids and it worked very well.
I got some much more sophisticated speaker cables and abandoned my project, except for use as the jumpers on the speakers themselves. I think the wire is better than the brass ?? alloy the stock jumpers were made of. The speakers sound great.

Douglass_schroeder, I read your article and came away with what I've been believing for some time now: amps don't make much of a difference but cables do. It was an enjoyable read and I really felt for you.

But there's one thing that I can't get my head around and it's that the ABX tester didn't add anything to the equation. Somewhere, in the back of my head, there's this nagging suspicion that it was an equalizer of sorts since no component can be completely neutral.

We're talking small (even minute) degrees here and from what I've learned, that's
all it takes to make a difference or to mask a difference.

All the best,
Nonoise

There's also this.

http://www.wireworldaudio.com/Comparator/index.html

Actually, Mitch is right. It's thermostat wire.

I've heard the 54 ga Omega Mikros from Mapleshade. Now, those are impressive!