Whirlwind NL4 Series Multiline Speaker Cable | Length: 150 feetThe Whirlwind NL4 Series Multiline Speaker Cable is a 4 conductor cable is manufactured with 12 4 SJ type wire. Whirlwind's Multiline speaker cables represent their latest efforts to provide the industry with the most reliable connectors and cables available today. Most cable manufacturers simply use the screw down terminals inside the connectors to terminate. Whirlwind also solders the connections for extra stability, enabling them to give a lifetime