The Martin Era Acoustic Guitar Strings redefine acoustic performance with exceptional tone, smooth playability, and lasting reliability. Engineered with advanced materials and craftsmanship, these phosphor bronze strings deliver a rich, balanced voice, enhanced responsiveness, and a premium feel that elevates both vintage and modern guitars to their full sonic potential.

• Patented Lifespan® treatment protects strings against corrosion for extended longevity.
  
• Flexible Core construction enhances fretability and player comfort.
  
• Silk-wrapped ball ends provide a vintage-inspired, premium touch.
  
• Artist Light version was developed in collaboration with six-time GRAMMY® winner Jason Isbell.
  
• SP® core design in the Artist Light version matches Jason Isbell’s signature guitar sound.
  
• Phosphor bronze construction produces rich, balanced tone with clear trebles and warm lows.
  
• Combines advanced string technologies from the Martin Strings lineup for professional performance.