There are always pros and cons with each type (of most things in audio). I'd think a hybrid of both (or multiple sizes) might be the sweet spot. But also "as always", it's subjective, and there are variables that are unique to every situation.
Solid copper or stranded copper for speaker cables? What is your choice and why?
I had old copper speaker cable made by Audioquest (don't know the model). The cable contains only two solid copper wires, one is thicker than the other. As I recalled, Audioquest claimed back then that thicker wire primarily carries lower frequency signal and the thinner wire is responsible for the rest. I actually have not seen this type of design nowadays, BUT when listening and comparing it with the stranded wire (either 12 or 10 gauge) cable, I found the dynamic range is greater, and the bass is tighter and has more weight. What do you think?