Martin MP550T Era Premium 13-56 Medium

Premium Sound With Long-Lasting Performance!

The Martin Era Premium Treated Strings 13-56 Medium are designed for players who won’t compromise on their acoustic guitar. This high-quality string set for acoustic and steel-string guitars combines a warm, clear, and projecting tone with a noticeably pleasant playing feel. Martin brings together several proven technologies from its own strings portfolio: Phosphor Bronze for the sought-after acoustic sound, the patented Lifespan treatment to protect against corrosion, and a Flexible Core construction for increased comfort and improved playability. The result is a premium set of guitar strings equally suited to ambitious sessions, regular practice, and daily use on high-end instruments.

Tone Character and Playability

Phosphor Bronze is among the most popular materials for acoustic guitar strings because it delivers a balanced, musical yet projecting tone. That’s exactly where the Martin Era strings excel. They provide a defined fundamental, present highs and a harmonic overtone spectrum without sounding harsh. Thanks to the Flexible Core design, the strings respond smoothly under the fingers and support a comfortable fretting feel. This makes the Medium set particularly attractive for players seeking a full-bodied sound and stable tension without sacrificing comfort.

Longer-Lasting Performance Thanks to Lifespan Treatment

The patented Lifespan treatment reliably protects the string surface from corrosion. As a result, tone, response and feel remain consistent over a longer period. For frequently played instruments this is a clear advantage, because treated strings retain their quality much better in everyday use. For you, that means fewer tonal losses caused by sweat, humidity and normal wear, plus a reliable playing feel across many sessions.

Premium-Level Details

A special feature of this set are the silk-wrapped Ball Ends. These silk-wrapped ends are designed specifically with vintage instruments in mind and at the same time provide a high-quality detail that underlines Martin’s handcrafted string tradition. The Medium set with gauges .013 - .017 - .026 - .035 - .045 - .056 offers a powerful, confident foundation for punchy strumming, controlled flatpicking and an overall stable tonal structure. The Martin Era Premium Treated Strings are a convincing choice for anyone looking for premium acoustic guitar strings with strong tone, high quality and modern protective technology.

Discover a string set that harmoniously unites sound, comfort and durability!