Sommer cable 415 0056 speaker cable sc meridian sp215 dark grey sheath sommer cable 415 0056 p the sommer cable 415 0056 is a robust speaker cable that has been designed especially for speakers and satisfies all special technical demands the oxygen free copper strand provides better sound and more durability p p application all types of sound systems for permanent installation for ela technology and wiring of hi fi systems it is not designed for mobile applications however p s