D'Addario H513 4/4H G 4/4 Cello Strings

Helicore Cello G String — Stranded Steel Core for Clear, Warm Tone

The D'Addario Helicore Cello Single G String is a dedicated replacement string for the lowest-pitched voice of a full-size (4/4) cello. Built around a stranded steel core rather than a solid wire, this construction gives the Helicore line its reputation for clear, warm tone and fast bow response, as confirmed in the brand's own product description. The heavy tension variant adds mass to the G, producing a deeper, more grounded fundamental that projects well in solo and chamber-music settings. Because it is sold as a single replacement rather than a full set, players can refresh the most heavily used string on the instrument without buying a complete re-string.

Technical Specifications

• String: G (single replacement string)
• Core: Stranded Steel
• Tension: Heavy
• Size: 4/4 (full-size cello)
• Ending: Ball End
• Compatible With: Cello
• Country of Manufacture: US

Who It's For

The Helicore Cello Single G String in heavy tension is the right choice for cellists who need a low-register replacement string with more body and projection than a standard-tension G. Intermediate and advanced players working on solo Bach, sonata repertoire, or chamber-music literature will appreciate the grounded fundamental and fast bow response that the stranded steel core delivers. Heavy tension also suits cellists whose instrument responds well to a thicker gauge in the bass voice, or those moving up from a lighter set as their technique develops. Because it is a single string with a ball-end fitting, installation on a standard cello tailpiece is straightforward — no need to disturb the A, D, or C strings already on the instrument.