One 10 foot speaker cable.
Our cables match our loudspeakers input, which uses one professional Neutrik Speakon connector.  You will find this to be the easiest connection systems, and proven in reliability and excellent connection in the audio industry for over 30 years.  Not many home audio amplifiers offer the Speakon connector.  They are usually found in professional audio and the some of the most high end amplifier designs. 
Cables are 100 percent 14 gauge copper with two protective casings, good for up to 400 watts of power.
 
(If you wish to not have a neutrik connector at the amplifier end,  you can choose to remove it.  The process is simple by unscrewing the outer case with your hands, and then a small phillips style screw driver to unclamp the inner connections.)