D'Addario H312 3/4M A Violin Strings

Helicore Violin Single A String: Clear, Warm Tone with Quick Bow Response

The D'Addario Helicore Violin Single A String is a replacement string designed for 3/4 size violins, offering a clear, warm tone with excellent pitch stability. Built around a multi-stranded steel core, this medium tension string delivers quick bow response and a focused articulation that suits both traditional classical playing and alternative styles including fiddle and electric violin work. The string is scaled to a playing length of 310 mm (12 1/4 inches), making it an exact fit for 3/4 scale instruments.

Helicore strings are crafted with a cable-style core of braided steel wires, blending strength with flexibility. This construction produces a smaller string diameter than many competing designs, which contributes to the fast, responsive feel under the bow. The ball-end design fits standard fine tuner tailpieces, and each string is packaged in a uniquely-designed sealed pouch that protects against the elements that cause corrosion. All D'Addario strings are designed, engineered, and manufactured in the USA at the company's New York production facility.

Technical Specifications

• String: Single A string — replacement string for violin
• Scale: 3/4 size violin — playing length 310 mm (12 1/4")
• Tension: Medium tension — balanced response for most players
• Core: Multi-stranded steel core — braided steel cable construction
• Ending: Ball end — fits standard fine tuner tailpieces
• Origin: Made in the USA — New York production facility

Who Is This String For

The Helicore Single A String in 3/4 scale, medium tension, is the right choice for violinists who need a reliable replacement A string with quick bow response and clear, focused articulation. It suits advancing students working on classical repertoire, intermediate players exploring fiddle and alternative styles, and professionals who prefer a bright, powerful tone with excellent projection. The medium tension provides a balanced feel that works well for most playing situations, while the stranded steel core delivers the tuning stability needed for performance and practice. Players with darker-sounding instruments will appreciate the brightening effect of the steel core construction, while those seeking a warmer, more complex tone may want to explore synthetic core alternatives. The 3/4 scale sizing makes this string an exact match for student-size violins commonly used by younger players and advancing students transitioning to full-size instruments.