Martin SP Studio/Performance Series strings are ideal live, in the studio. The creation of these new high performance strings is a result of research done in cooperation with specialty steel producers. Due to the development of an industry leading ultra-high quality steel core, Martin SP strings resist breakage better than average strings. Available in 80/20 Bronze, 2/8 Phosphor Bronze, Fingerstyle 80/20 Bronze, Fingerstyle 92/8 Phosphor Bronze, Bluegrass 80/20 Bronze, Bluegrass 92/8 Phosphor Bronze. (6 and 12 string models available)
