Detail 01
Tin-plated on all six strings
The plating is used for added corrosion resistance across the full set.

Independent shopping perspective
Martin Authentic Acoustic SP Custom Light Phosphor Bronze strings come in a three-pack of 11–52 sets built with demanding practice and performance schedules in mind. Each set uses Martin’s highest tensile-strength core wire, and every one of its six strings receives tin plating for added corrosion resistance. For a performer maintaining the same custom-light gauge through regular playing, this package keeps three matching sets together.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The plating is used for added corrosion resistance across the full set.
Detail 02
Provides three matching custom-light sets.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. All six strings are tin-plated for added corrosion resistance.
Three matching sets are included.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.