The J.Sikora record weight in production. Nothing happens here by chance. Number and depth of precise cuts. A combination of suitable brass and bronze grades in a total weight of 1.5kg. All nickel plated.  Janusz Sikora, J. Sikora Turntables Owner and Designer." "There is no simple recipe for the proportions and types of materials we use. It's about choosing the right ones, using their properties, combining them, and creating a new composition. Until we are completely satisfied. And only long, tedious experiments with sound can get you there."