The Martin MA180T Authentic Acoustic Lifespan 2.0 strings are a treated 80/20 bronze set built specifically for 12-string acoustic guitars. They come in an extra light gauge (.010–.047 on the primary strings), which keeps tension manageable across all twelve strings while still delivering a clear, bright acoustic tone.
What sets these apart from a standard string set is Martin's patented Lifespan 2.0 anti-corrosion treatment. It works on both the core wire and the wrap wire — so the protection isn't just surface-level. The result is a string that resists the sweat and oil buildup that typically kills tone over time, without changing the way the strings feel underhand or sound through your guitar.
80/20 bronze is the classic acoustic string alloy — 80% copper, 20% zinc — known for a bright, articulate tone with good note definition. On a 12-string, that clarity helps each course ring out distinctly rather than blurring together. The extra light gauge makes the instrument easier to play for longer stretches, especially helpful when you're managing the higher tension of a 12-string setup.
Product Features:
- Martin Authentic Acoustic Lifespan 2.0 — treated 12-string set
- 80/20 bronze construction (80% copper, 20% zinc)
- Patented anti-corrosion treatment on core wire and wrap wire
- Extra light gauge: .010/.010 – .014/.014 – .023/.010 – .030/.012 – .039/.018 – .047/.027
- Designed for 12-string acoustic guitars
- Smooth feel with reduced finger drag
Brand: Martin
Model: MA180T Authentic Acoustic Lifespan 2.0
SKU: MA180T
Condition: New
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