D'Addario H511 1/2M A 1/2 Cello Strings

Helicore Cello A String — 1/2 Scale, Medium Tension

The D'Addario Helicore Cello Single A String is a replacement A string designed specifically for 1/2 size cellos, scaled to a 600 mm playing length. Built around a multi-stranded steel cable core rather than a traditional solid steel or gut core, this string delivers a clear, warm tone with a notably quick bow response. Its smaller diameter helps the string speak immediately under the bow, making it easier for younger players to produce a focused sound. Titanium winding on the A string gives it a bright yet warm character that sits well in a mixed ensemble. Premium materials and skilled workmanship combine to produce a string known for excellent pitch stability and longevity.

Technical Specifications

• Number of Strings: 1 — single replacement A string
• String Designation: A
• Size: 1/2 — scaled for 1/2 size cellos with a 600 mm playing length
• Core: Stranded Steel — multi-stranded cable core blending strength and flexibility
• Winding: Titanium wound — titanium winding on the A string for a clear, warm tone
• Tension: Medium — optimized for the needs of a majority of players
• Ending: Ball End — fits standard cello tailpieces
• Compatible With: Cello
• Country of Manufacture: USA

Who Is This String For

This single A string is the right choice for student and intermediate cellists who need a reliable, responsive replacement for their 1/2 size instrument. The stranded steel core construction makes it an excellent option for younger players who benefit from the quick bow response and easy playability, while the medium tension suits the majority of playing styles. Stable tuning and durable construction make it well-suited for daily practice, school orchestra programs, and stage performances alike. The ball end fitting allows for straightforward installation in any standard cello tailpiece, and the string's pitch stability means it holds tune well once settled. Whether replacing a worn A string or upgrading from a beginner set, this model delivers the focused tone and flexibility that developing cellists need.