Martin Acoustic MA540T Phosphor Bronze 12–54

Powerful, warm, and built to last — the Martin MA540T Phosphor Bronze strings combine rich acoustic tone with the durability of Titanium Core technology. With a medium gauge (12–54), they deliver strong projection, fuller resonance, and excellent tuning stability, making them a top choice for strummers and pickers who need consistent performance.

• Phosphor Bronze winding for warm, balanced tone with clear highs

• Medium gauge (12–54) for bold projection and full sound

• Titanium Core technology for longer lifespan & durability

• Superior tuning stability & consistent tone

• Crafted to Martin’s exacting quality standards

A dependable set of acoustic strings that blends powerful tone with long-lasting performance.