@mikem:
Sorry for the delayed response. We've been hit hard by three feet of snow coupled with ongoing power outage and power's not projected to return until 1/7. I'm on generator and can't stay long.
Anyway, I use Audio Art speaker cable. I have long runs (20 feet) and when I started out, that's what I could afford. I've upgraded all my other cables over time (some, more than once) but not the speaker cable and I can't see doing it until we live somewhere that affords much shorter runs.