D'Addario XB125TSL Samostojna struna za bas kitaro

Tapered Nickel Wound Single String for Super Long Scale Bass

The D'Addario XB125TSL is a replacement single string built for super-long-scale bass guitars that need a heavy-gauge low end. As part of the XL Nickel Wound bass line, this string uses nickel winding to deliver the bright, punchy character that has made D'Addario a standard choice for bassists worldwide. The .125" gauge makes it the right choice for the lowest string position on 5-string and 6-string basses, or for players who want a thicker, more authoritative low B or low E on a 4-string.

What sets this string apart is its tapered construction — the winding diameter is reduced at specific points along the string to lower mass where it meets the bridge saddle or tuning post. This reduces stress concentrations and improves tuning stability, especially under the heavy tension that a .125" string produces. Combined with the super-long-scale length, the XB125TSL is engineered to feel balanced and stay in tune across the entire neck.

Technical Specifications

• Number of Strings: 1 — single replacement string
• Gauge: .125" — heavy-gauge, suitable for the lowest position on extended-range basses
• Material: Nickel Wound — nickel winding for bright, articulate tone
• Scale Length: Super Long Scale — designed for super-long-scale bass guitars
• Construction: Tapered — graduated winding diameter for improved tuning stability

Who It's For

This single string is the right choice for bassists playing super-long-scale instruments who need a reliable replacement for the lowest string on their setup. It suits players of rock, metal, and other genres where a thick, defined low end is needed — particularly those running 5-string or 6-string basses in drop tunings. The tapered design also makes it a smart upgrade for anyone experiencing tuning instability with standard non-tapered heavy-gauge strings. As a single replacement rather than a full set, it's ideal when only one position needs refreshing.