Martin MA550T Lifespan® 2.0 Phosphor Bronze Medium Strings (13-56)

Long-Lasting Tone, Enhanced Feel & Professional Performance

The Martin MA550T Lifespan® 2.0 Phosphor Bronze Medium Strings are designed for players who want premium tone with extended lifespan. Featuring Martin’s Lifespan® 2.0 treatment, these strings maintain their fresh, vibrant sound longer than traditional uncoated strings—without sacrificing feel or tone.

Built with 92/8 phosphor bronze wrap wire, the MA550T set delivers a warm, balanced acoustic voice with rich overtones and clear articulation, making them a go-to choice for serious players and gigging musicians.

🌟 Key Features

• Lifespan® 2.0 Treatment — Extends string life while preserving natural feel
• 92/8 Phosphor Bronze Construction — Warm, balanced tone with rich harmonic content
• Medium Gauge (.013 – .056) — Strong projection and fuller response
• Anti-Corrosion Technology — Helps resist dirt, sweat, and environmental wear
• High-Tensile Core Wire — Stable tuning and consistent performance
• Authentic Acoustic Series — Designed for maximum tone and reliability

🎶 Tone & Performance

The MA550T strings offer the same full-bodied tone as traditional phosphor bronze, but with significantly longer life. Expect warm lows, defined mids, and smooth highs, ideal for a wide range of playing styles.

Compared to untreated strings, Lifespan® 2.0 strings retain their brightness and clarity for longer, reducing the need for frequent string changes—especially valuable for gigging musicians and frequent players.

The medium gauge provides added volume, sustain, and projection, making these a top choice for dreadnought guitars and strong strumming styles.

👍 Ideal For

• Players who want long-lasting acoustic tone
• Gigging musicians and frequent players
• Dreadnought guitars (D-18, D-28, HD-28, etc.)
• Strummers and flatpickers
• Players who prefer medium gauge feel and projection