Authentic Acoustic SP

These strings are engineered with the performer in mind and they will always stand up to rigorous practice and performance schedules. We start with our highest tensile-strength core wire, then tin-plate it on all six strings for added corrosion resistance; because what you don't see matters! 
When coupled with the highest quality wrap wire you get consistent true tone that you can count on song after song. 

Available in 80/20 Bronze and 92/8 Phosphor Bronze. Martin Authentic Acoustic SP strings offer excellent tuning stability, corrosion resistance and great playability.

Gauges: .011 - .015 - .023w - .032w - .042w - .052w