A subwoofer produces low frequencies that extends the bass of a full-range speaker system. There are two kinds of subwoofers, active and passive. Passive speakers use speaker cable. Active Subwoofers are connected to the amp with a interconnect. Low Frequencies travel differently from midrange and high frequencies so just any interconnect won't necessarily give you the best bass possible.
Kramer Subwoofer Cables for Home Theatre
Kramer's Subwoofer cables are high performance, professional broadcast quality cables with gold plated connectors at both ends. With quality of construction, Kramer Subwoofer cables are available in 15 - 50 ft lengths.