The Tephra speaker cable has been created based on years of customer feedback from several different speaker cable types _ combining the best features of these. It is a 8-conductor, 13 AWG, stranded copper speaker cable that significantly enhances guitar amp speaker performance and tone. With a thick outer jacket and jumbo G&H speaker plugs, it is built for the rigors of stage use and to be extremely durable. Like actual Tephra from a volcanic eruption, rigs using the Tephra speaker cable will explode with bigger, fatter, and better tone.