D'Addario H414 MM Viola Strings

Helicore Viola Single C String — Stranded Steel Core with Tungsten-Silver Winding

The D'Addario Helicore Viola Single C String is a replacement string for the lowest-pitched voice on the viola, built around a multi-stranded steel core that blends strength with flexibility. The C string is wound with tungsten-silver, giving it a clear, warm tone with quick bow response and excellent pitch stability. Sized for medium-scale violas (15"–16") in medium tension, this single string is sold individually so players can replace a worn C without buying a full set. The smaller string diameter helps the bow catch the string immediately, making articulation fast and focused across traditional, classical, and alternative playing styles. All D'Addario orchestral strings are designed, engineered, and manufactured in the USA at the company's New York production facility.

Technical Specifications

• Number of Strings: 1 — single replacement string, not a full set
• Name String: C — the lowest-pitched string on the viola
• Core: Stranded Steel — braided steel cable core that combines strength and flexibility for quick bow response
• Winding: Tungsten-Silver — wound with tungsten-silver for a clear, warm tone
• Hardness: Medium — medium tension for balanced playability
• Ending: Ball End — fits standard viola tailpiece
• Compatible With: Viola — medium scale (15"–16" body)

Who It's For — Viola Players Across Styles and Skill Levels

The Helicore Viola Single C String is the right choice for viola players who need a reliable replacement C string with quick bow response and a clear, focused articulation. It suits students working through their first full-size or fractional viola, intermediate players advancing through graded repertoire, and professionals who want a flexible string for both traditional and alternative styles. The stranded steel core and tungsten-silver winding make it well suited to classical chamber and orchestral playing, fiddle and folk styles, and electric or amplified viola work where projection matters. Medium tension is the most widely recommended option for players who want balanced resistance under the bow without extreme fingerboard pressure. Because it is sold as a single string, it is also a practical choice for players who need to replace just one worn or broken C without purchasing an entire new set.