D'Addario PB064 Guitar string

Phosphor Bronze Acoustic Guitar Single String — .064 Gauge

The D'Addario PB064 is a single phosphor bronze wound acoustic guitar string designed as a replacement or for building custom string sets. At .064 inches (1.63 mm) gauge, it sits in the heavier end of the phosphor bronze single-string lineup, making it a natural choice for the low strings on a standard acoustic set or for down-tuned playing styles. The string is precision wound with corrosion-resistant phosphor bronze over a hexagonally shaped high-carbon steel core, producing the warm, bright, and well-balanced tone that has defined D'Addario's phosphor bronze series since 1974. Each PB064 is sold individually, so players can replace just the worn string instead of buying a full set.

Technical Specifications

• Gauge: .064" / 1.63 mm
• Material: Phosphor Bronze wound over hex-shaped high-carbon steel core
• Winding Type: Round Wound
• Finish: Coated
• Ending: Ball End — fits standard acoustic bridge pins
• Number of Strings: 1 (single)
• Compatible With: Acoustic Guitar

Who Is It For

Acoustic guitar players who need a single replacement string in the .064 gauge will find this PB064 a practical solution — whether to fix a broken low string, match a heavier custom set, or experiment with down-tuned tunings like Drop D or Open G. It suits players who prefer the warm, well-balanced character of phosphor bronze over brighter 80/20 bronze strings, and who want the reliability of a hex-core construction for stable intonation. The ball-end fitting works with any standard acoustic bridge that uses bridge pins, so installation is straightforward for anyone comfortable with basic string changes. Made in the USA at D'Addario's New York production facility, this single string is a practical spare to keep in any acoustic player's case.