Anchor Audio SC-50NL 50' Speaker Cable with Neutrik Speakon Connectors Connects Powered Xtreme Sound SystemXTR-6000 to Unpowered Xtreme Companion Speaker XTR-6001 Allows you to Join Speakers up to 50.0 feet /15.24 meters apart using the SC50NL With Anchor Audio's XTREME Sound System, connect one end of the SC-50NL to the Companion Speaker Output of the XTREME, then patch the other end into the XTR-6001 Unpowered Companion Speaker The SC-50NL will supply power and signal to drive the XTR-6001