Extreme Consumer Products 50 Feet Pure Copper Core eXtreme Speaker Wire, Not CCA (Copper Clad Aluminum) for Optimal Audio Performance | Stranded Core and Polarity Stripe UNIVERSAL: This Wire Can be Used for Any Home, Studio, or Car Audio Application for Which You Require Clear Crisp Output. (IE: High Def TV, Audio Amps, Studio Monitors, Alarm System, and More) TRUE COPPER CORE: Many Manufacturers Will Tell You Their Speaker Wire Has a Copper Core, but What You Get is an Aluminum Core Coated in Copper. Our Wire is a TRUE Copper Core, Through and Through WIRE SPECIALISTS: We Sell a Wide Variety of Different Wire Types, for Different Solutions. Rest Assured Knowing that You Are Getting a Product We Stand Behind 100%. 30 Day Returns, No Problem AMERICAN MADE: This is No Cheap Wire Manufactured in a Foreign Country. This Quality Speaker Wire is Manufactured Right Here in the Good Ole USA. We Pride Ourselves on That Fact MANY LENGTHS: If You're Looking for Another Length, Please Visit Our Amazon Store. We Carry a Variety of Different Speaker Wire Lengths to Meet Your Specific Needs, and Appreciate Your Business