AudioQuest Sub 1 2M (Black/Blue)
2M black/blue subwoofer interconnect audio cable
You need a cable specifically for your subwoofer, but you need more of the good stuff, like the higher silver content (2.5-percent) found in the Sub1. Silver is known for its exceptional ability to transmit high-speed digital signals with the least amount of distortion - the higher the silver content, the cleaner your audio will be. And as a component, these cables will drastically improve the quality of sound and video of every other component in your home-theater quiver. Really.
6' 7" = 2M cable length