Curt Mangan Phosphor Bronze Acoustic Guitar Strings

Curt Mangan phosphor bronze acoustic guitar strings deliver a balanced, musical tone with clear highs, solid low end, and smooth, subtle overtones. First introduced in the early 1970s, phosphor bronze has become the most widely used acoustic string alloy thanks to its warmth, clarity, and consistency.

One standout feature of Curt Mangan phosphor bronze strings is the availability of lighter acoustic gauges rarely offered by other brands, including 9–42, 9–46, and 10–46. These lighter options are ideal for players looking for easier playability, reduced tension, or electric-style feel on an acoustic guitar, without sacrificing the tonal character of phosphor bronze.

Curt Mangan phosphor bronze wrap wire is made from an alloy consisting primarily of copper with small amounts of zinc and phosphorus. The addition of phosphorus helps reduce tarnish and corrosion, allowing the strings to maintain tone and feel longer than traditional bronze strings.

Each string is produced using Curt Mangan’s FusionMatched™ approach — a proprietary process that considers core-to-wrap ratios, wire selection, custom-built winding machines, and gauge-specific design. Rather than applying a single formula across all gauges, each string is engineered individually to achieve the desired tone, intonation, and longevity.

All Curt Mangan acoustic guitar strings are made using USA-made wire and carefully manufactured to deliver consistent performance from set to set.

Key Specifications

• Phosphor bronze acoustic guitar strings

• Balanced tone with clear highs and smooth overtones

• Enhanced corrosion resistance

• FusionMatched™ gauge-specific construction

• Total string length: 43"

• Made with USA-made wire

• Available in rare light gauges, including sets (9–42, 9–46, 10–46)