Some violins don’t work well with synthetic or gut core A strings. They may sound gritty and there can be a problem with response especially in the higher positions.
This is why many violinists prefer metal A strings. Warchal designed the "Russian Style" A for these players a few years ago.
We're now introducing a string that merges the "Russian style" formula with our unique helical design. The helix significantly improves the longitudinal elasticity of the metal solid wire core. As a result, the "Avantgarde" A has more warmth and depth of tone. It keeps its high quality sound even under full attack and has a remarkably fast response.
The wavy design continues along the whole length of the string, so for some violin players the feeling under the finger may require a few minutes to get used to.