Part of Martin’s NEW range of Acoustic Guitar strings.

Martin Authentic Acoustic SP strings offer excellent tuning stability, corrosion resistance and great playability.


  • MA170 GAUGES: 10-14-23-30-39-47
  • MA175 GAUGES: 11-15-23-32-42-52
  • MA140 GAUGES: 12-16-25-32-42-54
  • MA150 GAUGES: 13-17-26-35-45-56


Martin® Authentic Acoustic® Superior Performance SP® strings feature higher tensile strength and tin-plated core wire on all six strings that enable a fuller and more balanced tone, quicker response and increased tuning stability.

Our impeccable standards for acoustic guitar tone are embedded in our string design and precision manufacturing process.

MA1 | Acoustic Guitar Strings | 80/20 Bronze | Martin