Built for musicians who demand reliability under pressure, Martin Authentic Acoustic SP® strings are crafted to withstand the most demanding practice sessions and live performances. These strings begin with Martin’s highest tensile–strength core wire, which is then tin–plated across all six strings to provide superior corrosion resistance – protecting the components you can’t see but that make all the difference.
The combination of this robust core construction with Martin’s premium wrap wire creates strings that maintain consistent, true tone performance song after song. Musicians can rely on excellent tuning stability, enhanced corrosion resistance, and smooth playability that keeps up with their musical demands.
- 12-string Extra-Light gauge: 10-10-14-14-23-10-30-12-39-18-47-27
- Designed to resist corrosion
- Great playability



