@efzauner I made no claims to it being bad. I stated that my industrial electrician experience says it's a bad thing to use solid core conductor in higher frequency applications. I was looking for an explanation as to why that "best practice" is different in audio applications.
Your second post was the answer I was looking for, rather than the condescending attack of your first post. I am not an engineer, I'm a motor controls tech, and a damn fine one. With that said, I hadn't really considered the fact that speaker wire isn't carrying much of anything, current wise. I deal with 480VAC and 250vdc, along with 4-20mA current loops, 0-10vdc bi-polar analogue control, etc... Audio is outside my realm of knowledge, and that's why I posed a question instead of a claim.