Aluminium on synthetic core.
Medium tension only
Liking this A string a lot
Pros: I very much liked this string with its rich mellow tone. Although synthetic it minics some of the qualities of a gut core string. After a few days it grew even mellower. I used it with a set of Evah pirazzi gold and it has a much lower tension and is way softer on the fingers than the Evahs. On my violin it sounded nicer than the Evah A string and complimented the rest of my Evah set.
Cons: It takes quiete a while (2 weeks for me) to stretch and during that time needs ti be tuned a lot but well worth the extra effort.
Perfect A for fiddling. Lighter touch.
Pros: Settled in quite quickly. Once settled, really easy and light fingering. Great for folk fiddling and a great match for my old French workshop fiddle which is deep and mellow. No more index finger callus!
Cons: The ball end struggled a bit with my fine tuners but that could equally be because they are new too.
Other: Great match with Violino D. Currently paired with Pirastro Aricore G and Aricore E. When it comes to next change I will go back to Lenzner Goldbrokat E and Pirastro Synoxa G as on my other modern violin. However, all balance very well. Just the Aricore E is a bit too thin and cheese-wirey.
Nice clean, warm sound
Pros: I bought this to 'tame' a good modern violin which has a rather hard, over-prominent sound on the A string, somewhat improved by the luthier who experimented with the poisiiton of the sound post, but still not quite to my taste. The string does produce a clean, warm sound and it did help, so I am quite happy with it ; up till now - I have tried other strings - it has offered the best solution.