Guitar cords and speaker cables are not interchangeable. What's the difference? Basic difference speaker cables are unshielded with a jacket and have two conductors of the same length and gauge, (+) and (-). Cable Corp Speaker Cables are identified with black and white stripe casing. Whereas, a guitar cord is shielded, it has one conductor for (hot), and one braided shield for (ground). If you try and use it for a speaker cable, one side offers significantly more resistance than the other, which can create real problems for your PA or power amp when connecting an external speaker. Guitar cords tend to have a bit more resistance, so more energy is dispersed along the length. Using them on a speaker creates high resistance solder joints and can damage the internal wire strands, leading to a risk of destroying your amp. Cable Corp Speaker cables are designed for speakers and power amps. They have non resistant jackets, are made of the highest grade of 18 gauge oxygen free copper strands and come with two 1/4 ' male phone plugs with PCV molded strain reliefs. Cable Corp cables have a lifetime warranty to the original owner when you complete and mail your warranty card attached to the package.