This highly flexible 25-gauge mono audio cable utilizes Wireworld’s patented DNA HELIX conductor geometry with 100% shielding and proprietary COMPOSILEX 5 insulation to improve the fidelity of consumer and professional audio systems. The advanced design features of this RCA to RCA subwoofer cable were developed through listening tests that compared prototype cables to virtually loss-free direct connections between components. NOTE: RCA to RCA subwoofer wire. This cable is also available in custom lengths and bulk spools.