D'Addario XSPB042 Guitar string

XS Phosphor Bronze Single String .042 — Coated Replacement for Acoustic Guitar

The D'Addario XSPB042 is a single replacement string for acoustic guitar in the .042" gauge, drawn from the XS Phosphor Bronze coated string line. The phosphor bronze wrap wire delivers the tried-and-true D'Addario acoustic tone with beautiful balance and warmth, suitable for all musical genres. An ultra-thin XS coating sits on top of the wrap wire, dramatically extending string life and improving tuning stability over standard 80/20 bronze strings. The .042" gauge typically sits in the 5th string (A) position of a standard acoustic set, making this single ideal for replacing a worn or broken string without buying a full set.

Technical Specifications

• Gauge: .042" / 1.07 mm
• Wrap Material: Phosphor Bronze
• Core: Steel
• Winding: Round Wound
• Coating: XS (coated)
• Ending: Ball End
• Number of Strings: 1
• Set Type: Singles
• Compatible With: Acoustic Guitar
• Made In: USA (New York production facility)

Who It's For

The D'Addario XSPB042 is the right choice for acoustic guitar players who need a single replacement string in the .042" gauge without buying a full set. It suits players who want the warm, balanced tone of phosphor bronze combined with the extended lifespan of XS coating — ideal for gigging musicians, teachers, and anyone whose A string wears out faster than the rest. The single format also lets advanced players build custom gauge sets by mixing different tensions to suit their playing style. Designed, engineered, and manufactured in the USA at D'Addario's New York production facility, this string delivers consistent quality for acoustic players across all genres.