D'Addario PB027 Guitar string

The D'Addario PB027 is a .027" gauge single replacement string designed for acoustic guitar, wound with phosphor bronze over a steel core for the warm, bright, balanced tone the series is known for. It works as a standalone replacement for a broken or worn string or as a building block for a custom set tailored to alternate tunings or non-standard instruments. Made in the USA and sold as a single unit, it slots directly into the popular D'Addario Phosphor Bronze lineup.

• Gauge: .027" / 0.69 mm — typical A-string gauge on a standard acoustic set
• Material: Phosphor Bronze winding — warm, bright, well-balanced acoustic tone
• Core: Steel hex core — stable tuning and consistent feel under the fingers
• Ending: Ball End — fits standard acoustic guitar bridge pins

Phosphor Bronze Single String for Acoustic Guitar

The D'Addario PB027 is a single .027" gauge phosphor bronze wound string built for acoustic guitar. It belongs to the long-running D'Addario Phosphor Bronze series, which the brand introduced in 1974 and which has been praised ever since for its bright, warm tonal character. The string is wound with phosphor bronze over a steel hex core, giving it the balanced response acoustic players expect from the PB line. Sold as a single replacement rather than a full set, it solves the common problem of one broken or worn string without forcing a complete restring. It also serves players who build custom gauge sets for alternate tunings, resonator guitars, or other non-standard instruments.

Technical Specifications

• Gauge: .027" / 0.69 mm
• Winding Material: Phosphor Bronze
• Core: Steel hex core
• Winding Type: Round Wound
• Ending: Ball End
• Finish: Coated
• Number of Strings: 1 (single string)
• Compatible With: Acoustic Guitar
• Country of Manufacture: USA

Who Is It For

Acoustic guitar players who need a single replacement string at the .027" gauge — typically the A string in a standard light or custom set — will find this the right choice. The single-string format suits anyone who wants to keep the tonal character of their existing D'Addario Phosphor Bronze set when one string breaks, without buying a full new pack. Players building custom sets for alternate tunings such as DADGAD or open G, resonator guitars, or other instruments where standard set gauges don't apply also rely on this format. The ball end drops into any standard acoustic bridge pin arrangement, and the coated finish helps extend string life between changes.