The string that started it all 50 years ago is now back by popular demand.

Martin’s original M150 medium gauge strings, with 80/20 composition, are ideally suited for players who love deep, rich bass tones and clear, bright trebles. Providing brilliance and clarity, Martin M150s are perfect for daily use and all playing styles.

Martin® Originals acoustic guitar strings are designed for players looking for a traditional tone and feel. For generations, Martin has set the standard for acoustic guitar tone and precision manufacturing. Those values are reflected in our string design and manufacturing process. That’s why we make our own.

Set: M150
Type: 80/20 Bronze
Gauge: Medium 13-17-26-35-45-56
Tension: 189.6
Package: 6 strings