Retros are the original Nickel acoustic string all the way from the 1930s. Retro strings offer a uniquely mellow, yet crisp sound that allows your guitar's natural tonewoods to be heard. They are crafted with Monel, a solid nickel/copper wrap wire -- not nickel-plated -- meaning there is no chance for defects in the plating to allow for corrosion. Martin's proprietary wrap wire is naturally corrosion-resistant and it is incredibly strong. We also employ a sophisticated winding process that controls the coupling between the core and wrap wire to maximize intonation.
- .013, .016, .026, .034, .044, .056 Monel
- Retro Monel Acoustic Guitar Strings Bluegrass