Modi Turntable – Bergmann Audio

Modi air supply for platter & air bearing tonearm.

Advantage of using air bearings

The platter is centred by a steel spindle, running in a very frictionless, low noise and hard-wearing polymeric bearing material, and floats on a thin air cushion, which lowers the mechanical bearing noise to an absolute minimum- if any. (A traditional bearing solution, which keeps the platter centred AND support the platter weight, makes a higher level of mechanical bearing noise, as the contact point between spindle top and platter, generates a very high pressure – and hereby noise.)

By floating on an air cushion, the platter also gains the advantage of very good isolation from the surroundings, the same way as the known -and very expensive- air-supported shelves, used in many high-end audio systems.
Also, the speed stability benefits from the air-supported platter. The musical flow is really extraordinary – not necessarily measurable but audible.

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Bergmann