COPPER CLAD ALUMINUM (CCA) - CCA wiring provides a good conductor for power transfer. This is the most economical option when choosing power or ground wire. Systems that require more power should consider OFC wiring. Allows free, wide and seamless adjustment of the required physical properties of this wire such as flexibility, elasticity, and impact resistance. PREMIUM SPEAKER WIRE Use this Speaker Wire Cable with build quality stranded conductors to build this professional grade speaker wire audio cable