@lanx0003 - It's common experiences with cables that give me confidence that there's more to it than expectation bias and placebo even though I know that they are also always an unavoidable factor.
My original perspective with speaker cables after doing a lot of reading was that the primary factor that resulted in audible differences was the AWG which led me to go with the 10 AWG BJC cables that are overkill for my length of cables. I believe 10AWG is what Imax uses for their sound systems that have really long runs. I have an intermediate switch in my speaker cables (receiver and integrated share my speakers) which is an automatic sub optimization and doubles the cost of any cable purchases. As a result I I stayed with the BJC cables for a long time until I came across the favorable reviews for the Mecca 14 that were easily obtained and reasonably priced for two sets. I didn't like them, but hearing the difference fed my curiosity. Early in my audiophile journey I made some DIY speaker cables from multiple runs of CAT5 cable with the goal of a large aggregate AWG from multiple small solid conductors. At the time it didn't seem to make any difference and they were a bulky mess so the 10 AWG BJC became a better solution for me. In retrospect, I think the inability to hear a difference was likely more related to the capability of my AVR than anything else. The more research I did the more I felt like there is something to smaller conductors, so I eventually purchased Morrow Audio SP4 speaker cables on a Black Friday sale and have really enjoyed the result. They added detail to the sound but in a natural way. My damping factor did drop significantly and I would say that the bass became a little less clean as a result, but not anything that would be objectionable.

