It would be very rare to have binding posts take 10awg wire, 10awg is way overkill for any speaker particularly Klipsch given how efficient they are.
Here is my cable: http://www.belden.com/techdatas/english/5T00UP.pdfSorry, it cant be 10awg wire. I have never seen a binding post on consumer speakers that can handle even 12awge without having to split up the wire and wrap some of it around the post. I cant count how many times Ive seen wire labeled 12awg where in reality its only 14 or even 16awg.
Take a wire awg measurement tool to confirm but Ill bet its much smaller than 10awg.
14awg wire is enough thickness for even the longest runs (unless your going more than 100ft) for speaker wire.