Ok, then same question, "What are you trying to change or improve?"
There is nothing inherently bad about 10 awg stranded copper speaker cables. Since you are looking for cables that "provide SQ upgrade," is there something about the sound that you don't like, or that you hope would change with different cables? Otherwise, you are going to get a bunch of brand name cables recommended by a variety of posters here. At that point, if you are curious, your options become buying and trying different cables or maybe looking into the lending library at The Cable Company and then you can figure out if something sounds better in your system. Let us know how it works out.