Born from our greatest breakthrough in string innovation, XS Phosphor Bronze strings have the longest life of any D’Addario acoustic guitar string. The XS coating gives a warm, balanced phosphor bronze strings maximum life, with an uncommonly smooth feel.

Made with a NY Steel core, phosphor bronze wrap wire, and Fusion Twist technology, XS coated acoustic guitar strings have incomparable break strength and tuning stability, in addition to their dramatically increased lifespan. 10-47 Light strings have slightly more volume and projection than Extra Light, while still being easy to play.

• 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 a 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 exacting specifications.