Some people would strongly argue that speaker cables make no difference for short runs. I would say that it did in my case, however there was a huge difference between the two cables I had in terms of build quality, you could easily tell. I guess when it comes to comparable thickness and quality, the differences in sound would probably be not so noticable.

Axiom M60s, QS4s, VP100 Onkyo TX-SR804 Oppo 970HD Rotel RB-1080/RCD-1072 REL Q150E sub, PS 3