GLS Audio 50 feet Speaker Cable 12AWG 4 Conductor Patch Cords for Bi-Amp - 50 ft Speakon to Speakon Professional Cables 4C Black Neutrik NL4FX (NL4FC) 12 Gauge Wire - Pro 50' Speak-on Cord 12G 4 Cond - Single True 12AWG Rated (American Wire Gauge) - 4 Conductor Genuine Neutrik Speakon NL4FX (NL4FC) Thick 10.5mm Durable & Flexible Rubber Jacket GLS Audio Hook and Loop Wrap (Reusable) Professional Quality and Construction