Speaker wires for SF Liuto towers and Smart center

I am awaiting my amp, which is a Mac MC205. I bought the Audioquest GBC speaker cables for my towers and center. I bought them because spec wise it was what I thought was a excellent deal. I called Audioquest and they are according to them have been discontinued for like 10 plus years. I told the rep my set up and he told me the GBCs don't even compare to their basic cable. Did I make a mistake with these cables? If so, what recommendations?