D'Addario H311 3/4M E Violin Strings

Helicore Violin E String — Plain Steel Replacement for 3/4 Size Violins

The D'Addario Helicore Violin Single E String, 3/4 Scale, Medium Tension is a dedicated replacement E designed to sit naturally inside the Helicore violin string family on a smaller-bodied instrument. Where the matching A, D, and G strings in the Helicore set rely on a multi-stranded steel core for flexibility and quick bow response, the E string itself is a plain tin-plated high-carbon steel wire with no winding — the standard violin E construction that produces a bright, focused top voice without the metallic edge that harsher plain-steel E strings can show. The 310 mm playing length is scaled precisely for 3/4 size violins, so the string sits at the correct speaking length and tension on the instrument's shorter body.

Medium tension is the most popular setting across the Helicore line and suits the majority of 3/4 violins, giving players a balanced feel under the bow without pushing toward a heavier or lighter setup. The ball-end fitting matches the fine tuners and tailpiece hardware found on most student and intermediate violins, making string changes quick. Each string ships in a uniquely-designed sealed pouch that protects against the moisture and contaminants responsible for corrosion, so the E keeps its tone and tuning stability on the shelf between changes.

Technical Specifications

• Instrument: Violin, 3/4 scale
• Playing Length: 310 mm (12 1/4")
• String: Single E string
• Tension: Medium
• Core: Solid steel — tin-plated high-carbon steel, plain (unwound)
• Ending: Ball-end
• Origin: Made in the USA at the New York production facility

Who It's For

The Helicore Violin Single E String in 3/4 scale medium tension is the right choice for players who need a reliable replacement E for a 3/4 size violin without committing to a full new set. Students working through graded repertoire benefit from the clear, focused articulation and the quick bow response that supports clean string crossings and articulation exercises. Advancing intermediate players and professionals who play a 3/4 size instrument — including travelling musicians, younger players transitioning between fractional sizes, and adult players with smaller hands — will find the medium tension sits comfortably under the bow with enough projection for solo and ensemble work.

Because the plain steel E pairs naturally with the stranded steel core A, D, and G strings in the Helicore set, it can be swapped in to replace a worn or broken E while keeping the voice of the rest of the set intact. It also works well as a backup string kept in a violin case for emergency changes before lessons, rehearsals, or performances.