Martin MA535 Authentic Acoustic SP Strings, Phosphor Bronze, Custom Light (.011-.052)

When it comes to strings that blend warmth, clarity, and consistency, Martin’s MA535s stand firmly at the front of the pack. Designed for players who want balanced tone without sacrificing strength or feel, these Custom Light phosphor bronze strings offer a sweet spot between flexibility and projection—ideal for strummers, fingerpickers, and flatpickers alike.

These aren't just any phosphor bronze strings. Martin’s SP (Superior Performance) series brings a level of craftsmanship that matches their world-renowned guitars. Built around high-tensile strength core wire and finished with top-quality wrap wire, the MA535s hold their tuning, resist fatigue, and keep their tone longer than your average set. Whether you're gigging, rehearsing, or just jamming in the kitchen, they won’t let you down after a few days of play.

That warm, slightly mellow phosphor bronze character is all here—but with a modern, crisp edge that helps every note sing without getting muddy. These strings offer just enough resistance for digging in, but remain light enough to make bends and expressive phrasing feel effortless.

If you're after a set of strings that can go from delicate folk to percussive acoustic rock—and sound great doing it—Martin's MA535s are an easy choice. And at Musicmaker, where we've been matching acoustic players with the perfect strings since before mobile phones were a thing, we know when something just works. These definitely do.

Features

• Custom Light gauge (.011–.052): Balanced feel—comfortable to play without losing body or volume

• Phosphor Bronze wrap wire: Rich, warm tone with a touch of sparkle for clarity

• High-tensile core wire: Built for strength, tuning stability, and longer life

• SP (Superior Performance) design: Resists breakage and stays tonally consistent over time

• Versatile across genres: Ideal for everything from fingerstyle folk to energetic rhythm playing

• Made with precision by Martin, one of the world’s most trusted names in acoustic tone