Martin Acoustic SP MSP4050 Phosphor Bronze Custom Light Strings
Martin acoustic guitar strings. Custom light gauge phosphor bronze .011 to .052
SP (Studio/Performance) series strings are made by Martin Strings craftspeople from an ultra-high quality steel core that resists breaking much better than average strings.
Both the core and the plain strings are plated with a smooth acoustic bronze finish. They stay bright, have long lasting tonal qualities, and look absolutely beautiful on a guitar.
E 1st .011
A 2nd .015
G 3rd .023
D 4th .032
A 5th .042
E 6th .052