The Armour range of high performance cables and adaptors are suitable for guitars, microphones, audio equipment and speakers and represent great value with sound performance. This SJP3 3 Foot High Performance Speaker Cable with 1/4 Jumbo Metal Jack To 1/4 Jumbo Metal Jack is designed to work with most PA Speakers and Power Amplifiers. Its over sized connectors and thicker cable gauge gives you better reliability with tremendous value.