Martin MA545 Light/Medium 12.5-55 Phosphor Bronze Guitar Strings

Martin Authentic Acoustic Superior Performance SP strings feature higher tensile strength and tin-plated core wire on all six strings that enable a fuller and more balanced tone, quicker response and increased tuning stability.


Gauge: Light/Medium
E: .0125
B: .0165
G: .0255
D: .0335
A: .0435
E: .055
Tension: 179.3