Amazon.com: CablesOnline, 3ft. Mono-Bridged Speaker/Amplifier 12AWG Cable with Neutrik® Speakon 4-Pole Male to Male Connectors, (1+/1+ and 2+/1-), SK-MB403 : Musical Instruments
Southwire 250 ft. 12-Gauge/2-Gauge Solid CU MC (Metal Clad) Armorlite Cable 68580055 - The Home Depot