Using solid copper Door Bell wire as speaker wire.

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

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

It makes sense to use inexpensive wire before the rest of your system is sorted. I would take the money saved and spend it on more ambitious sources; the current ones are not up to the rest of system which seems unbalanced. Good luck whatever the outcome.

Door bell wire?, wow!, considering I wouldn't use that on a Walmart rca system, looking at what the op has, this has got to be a joke, no pune tended, however, with that money that has been invested in his system, why not get quality cables?, cables are a component!

Audiolabyrinth, just because some manufacturer pastes their logo on it and puts it in a fancy bag/box/aluminum case, doesn't make it particularly better. Cables consist of copper (or silver) wire, dielectric material, geometry, damping materials, shielding (or not) and connectors. I understand there is research behind most of the top cables, but there is also a lot of marketing spin and fairy dust. You don't have to pay a lot of money to get good sound. I have heard, many upper range cables from manufacturers like Purist, Cardas, Audioquest, AZ, and others and, mostly, I prefer cables I have made myself. If the OP’s doorbell or thermostat wire is CDA 101 OHFC copper, and the dielectric is PE, this is about as good as is being used by many of the top cable makers. That it is solid core gives it an additional boost in my opinion. You shouldn't make the guy feel "unworthy" just because he isn't spending a bundle on cables. We will never agree because IMO the impact of a cable will never equal the impact of a component on how a system sounds.