Martin Authentic Treated Light Acoustic Guitar Strings MA540T

Martin’s next-generation Lifespan® 2.0 strings are engineered using proprietary technology designed to extend string life without sacrificing tone — the most important quality of any acoustic string.

Unlike heavy surface coatings that can dampen vibration, Lifespan 2.0 features a patented protective treatment applied to both the core and wrap wire. This ultra-thin treatment helps guard against corrosion and wear while maintaining the natural resonance, clarity, and dynamic response of traditional uncoated phosphor bronze strings.

The result? Strings that retain their fresh tone longer, feel smooth under the fingers, and reduce finger drag for a more fluid playing experience — ideal for gigging musicians and regular players who demand consistency.

Key Features:

• Phosphor Bronze
• LifeSpan 2.0 Coated
• Tin-plated core
• Ball end
• Metal wrap wire composed of copper, tin and phosphorous
• Extra light gauge (12-54)

Perfect for players who want the sound of traditional phosphor bronze with the longevity of an advanced protective treatment.