Martin Acoustic MA540 Phosphor Bronze 12–54

Full, rich, and long-lasting — the Martin MA540 Phosphor Bronze strings are built for players who want powerful projection with warm, balanced tone. With a medium gauge (12–54), they deliver greater volume, resonance, and durability while still offering smooth playability. Perfect for strummers and pickers who need their sound to cut through.

• Phosphor Bronze winding for warmth, clarity, and balance

• Medium gauge (12–54) for strong projection and fuller tone

• Excellent tuning stability & long lifespan

• Ideal for strumming, flatpicking & fingerstyle

• Precision-made to Martin’s trusted quality standards

A reliable choice for players who demand bold acoustic tone with lasting performance.