DiMarzio speaker cables are fine-tuned for deep bass and open highs, with high definition and openness from string-to-string. They're perfect head-to-cabinet cables for guitar or bass stacks. 12-gauge OFHC copper wire and FEP Fluoropolymer insulation minimizes cable interaction at stage level volumes. Head-to-cabinet connectors have black nylon outer jackets and 1/4-inch phone ends.