Martin Authentic Acoustic string set MA540 (12-54)
Martin Authentic Acoustics use high-tensile-strength core wire, and Martin uses a tin-plating process on both the plain strings and core wire of the wound strings. This increases resistance to corrosion, leading to greater longevity and better feel for all strings.
- Phosphor Bronze
- Size: 012, 016, 025, 032, 042, 054