The reeds are made from 1950 N/mm² sound steel with a tolerance of T3, ground to a precision of 20 cents with a special profile that allows rapid tone deployment from pianissimo to forte fortesimo. Reeds cast in zinc alloy. Channels cut by electroerosive technology with a surface of 0.8 microns. Machine riveted with a clearance between reed and channel of 0,02 – 0,03 mm. Supplied in complete sets according to customer’s request, marked with type of tuning and size of plates.