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 donâ€™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 SPÂ® strings offer excellent tuning stability, corrosion resistance and great playability.
- SILK & STEEL FOLK
- MediumÂ Â Â .013Â Â Â .017Â Â Â .026Â Â Â .035Â Â Â .045Â Â Â .056Â Â Â Tension = 190.9Â Â Â MA550