D'Addario XLB120 Nickel Wound Bass Guitar Single String Long Scale (.120)

The D'Addario XLB120 is a single replacement bass string engineered for long-scale instruments, part of the XL Nickel Wound series manufactured at D'Addario's New York production facility. Built with nickel-plated steel and round-wound construction, this .120 gauge delivers a distinctive bright tone with clear fundamentals–ideal for players building custom sets or replacing worn strings without committing to a full set.

Constructed from nickel-plated steel with round-wound architecture, the XLB120 offers increased output, bite, and sustain across the low end. The proprietary core wire is drawn in-house to enhance both break strength and intonation stability. At .120 gauge and long-scale specification, this single string suits four-string basses tuned to E standard or lower, with exceptional corrosion resistance compared to untreated alternatives.

The single-string format makes the XLB120 practical for players who prefer mixing gauges for a customised response, or for touring musicians needing reliable spares without excess inventory. Uncoated construction keeps costs accessible whilst maintaining the brightness and clarity that nickel-plated steel provides across its operational lifespan.

Features

• Gauge: .120, long scale, tapered design for standard four-string bass
• Material: Nickel-plated steel, round wound construction
• Tone profile: Bright with clear fundamentals and increased output
• Core wire: Proprietary in-house drawn for enhanced break strength
• Corrosion resistance: Superior durability compared to historical alternatives
• Format: Single string, ideal for custom set building or replacement
• Manufacturing: Designed, engineered, and made in USA
• Uncoated: Standard finish without protective coating layer