Cable quality can have a huge impact on your speaker setup. Poor quality cable means poor quality sound. This 16 AWG unterminated speaker wire features oxygen-free pure copper conductors, which means you get great sound quality for a great price. --- Ideally, the cables running to paired speakers should be the same length. We"ve made that process easy for you by marking our cable at every foot, so it"s easy to measure and cut at the length you need.