In order to securely connect speakers to receivers or power amplifiers, Belden offers high-quality Speaker Cables that are appropriate for commercial and professional installations. Plenum, indoor/outdoor, halogen-free, and direct burial are available options. Features & Benefits: Easy Pulling & Stripping: Belden's premium jacketing reduces installation costs and time. Solid Construction: features virgin copper electrolytic tough pitch (ETP) Easy Identification: Cable jackets have marks for the footage room and zone.