Martin MA130 Authentic Acoustic SP Silk & Steel Custom, 11.5-47
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 our 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.
My baby fingers thank me for allowing them to fret a decent acoustic gauge string without all the tension of a decent acoustic gauge string, and my guitar thanks me for allowing it to make a decent noise.