D'Addario 13-56 XSA Coated acoustic strings

XS Phosphor Bronze strings have the longest life of any D’Addario acoustic string, thanks to the ultra-thin XS film coating.

• Phosphor Bronze wrap wire provides tried-and-true D’Addario acoustic tone, with beautiful balance and warmth suitable for all musical genres.
• With an NY Steel core and Fusion Twist technology, XS Phosphor Bronze offers greater break strength and unmatched tuning stability—staying in tune 131% better than standard acoustic strings.
• XS coated acoustic strings are made in the USA—drawn to D'Addario's exacting specifications at their New York production facility.