Martin Era Treated Acoustic Guitar Strings

Martin Era™ Treated Acoustic Guitar Strings combine traditional Martin craftsmanship with advanced modern string technology to deliver outstanding tone, feel, and longevity. Designed for players seeking rich acoustic response with enhanced comfort and durability, Era strings bring together some of Martin’s most respected string innovations in a single premium set.

The phosphor bronze construction delivers warm lows, articulate mids, and crisp top-end clarity suitable for a wide range of playing styles, from fingerstyle to aggressive strumming. Martin’s patented Lifespan® treatment helps extend string life by protecting against corrosion while maintaining a natural acoustic feel and response.

Flexible Core construction improves playability with a more supple feel under the fingers, making bends and fretting smoother and reducing playing fatigue. Silk-wrapped ball ends add a refined vintage-inspired touch while helping protect bridge plates, especially on older or delicate instruments.

The Artist Light version, developed with six-time GRAMMY® winner Jason Isbell, features a traditional SP® core for players seeking a more classic acoustic response and dynamic feel.

Key Features

• Premium phosphor bronze acoustic guitar strings
• Lifespan® treated for enhanced longevity
• Flexible Core construction for improved comfort and playability
• Balanced acoustic tone with excellent clarity and projection
• Silk-wrapped ball ends
• Suitable for fingerstyle and strumming
• Available in multiple gauges from Extra Light to Medium

Choosing the Right Acoustic Guitar String Gauge

String gauge refers to the thickness of the string and plays a major role in the feel, tone, and response of your acoustic guitar.

Lighter gauge strings generally offer:

• Easier playability
• Softer feel for bends and fingerstyle
• Reduced tension on the guitar
• Brighter response

Heavier gauge strings generally provide:

• Greater volume and projection
• Fuller low-end response
• Increased sustain
• Stronger attack for heavier strumming

Martin recommends using gauges from Extra Light through Medium on Martin guitars. Heavy gauge strings may create excessive tension and potentially cause damage to the instrument over time.