2 core 14 Guage OFC speaker cable, the industry standard for residential and commercial AV environments for extended runs due to its larger core size. High purity 105 strand copper conductors with a low resistance to support professional install environments. DTECH speaker cables are made with Low Smoke Zero Halogen materials, making this range perfectly suited for both residential and public spaces. DTECH speaker cables are back by our 30-year performance and material guarantee