D'Addario H514 4/4M C 4/4 Cello Strings

Cello C String with Multi-Stranded Steel Core and Tungsten/Silver Winding

The D'Addario Helicore Cello Single C String, 4/4 Scale, Medium Tension (H514 4/4M) is a single replacement string for full-size cellists seeking a responsive, warm-sounding low end. Built around a multi-stranded steel core rather than a traditional solid gut or rope core, this C string offers a smaller string diameter that translates into quick bow response and immediate articulation under the bow. The C string is wound with tungsten/silver, a winding choice that adds focused depth and clarity to the lowest voice of the cello. D'Addario designs, engineers, and manufactures all Helicore strings in the USA under stringent quality controls, and the line is scaled to fit cellos with a 27 1/2" (700 mm) playing length. Players who want a clear, warm tone with expressive dynamic range will find this string a strong match for solo, chamber, and orchestral repertoire.

Technical Specifications

• Instrument: Cello
• String: C (single replacement string)
• Size: 4/4 (full size, 27 1/2" / 700 mm playing length)
• Tension: Medium
• Core: Multi-stranded steel core
• Winding: Tungsten/silver (C string)
• Ending: Ball end
• Manufacturer Part Number: H514 4/4M
• Country of Manufacture: USA

Who This Cello C String Is For

The Helicore Cello Single C String in 4/4 medium tension is the right choice for advancing students, dedicated amateur cellists, and working professionals who need a reliable replacement C string with a quick, responsive feel. Its multi-stranded steel core and tungsten/silver winding deliver a clear, warm tone that sits well in chamber ensembles and cuts through in orchestral tuttis, while the medium tension offers a balanced feel that suits most cellos without requiring bridge or soundpost adjustments. Players upgrading from a solid-core student string will notice faster bow response and improved pitch stability, particularly in extended practice sessions and live performance. The 4/4 scale matches full-size cellos, and the ball-end fitting installs easily on standard cellos equipped with integral fine tuners. For cellists seeking a lighter or heavier alternative, the same Helicore C string is also available in light and heavy tensions across fractional sizes from 1/8 through 4/4.