KUZMA STABI REF
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Stabi Ref was first introduced in 1992.
This is constructed from two plates, each plate being made from a sandwich construction of two 10 mm aluminium plates, separated by an acrylic plate clamped together with pre-stressed, non-magnetic, stainless steel screws. The turntable chassis (top plate) is suspended by large springs submerged in silicone oil, with a low resonance of 2.2 Hz, which dampens movements of the springs themselves. The main base (bottom plate) is supported by three aluminium and stainless steel spikes. The top plate is easily levelled by four knobs. When this plate is lifted (for transport) the silicone suspension reservoirs are automatically sealed.
Two motors in a diamond drive, power the subplatter, which has an inverted bearing with a ruby ball. Both ball and sliding ring have their own oil bath for lubrication and damping of any vibration within the bearing. The platter is also of a clamped sandwich construction, in order to combine the strength of aluminium (rigidity) and the damping properties of acrylic, which produces an exceptionally stable and no resonant support for records. The mat and special clamp are made in much the same way as the platter and further serve to control all vibration. The armboard also employs the sandwich construction design.