pwlcapricorn1

I have a sony STR-DG910. I bought a Synergy C-2 Center Channel speaker. When I look at the back of my receiver there is one pair of speaker wire hookups labeled Center. The problem is that the C-2 center speaker I bought has 2 pairs of speaker wire hookups. Should I just double up the speaker wire on the center labeled hookup on my receiver or should I just hook them up to the front labeled speaker wires? Will this affect the sound of the speakers? Thanks, Patrick