SME Model 20/3 Turntable

A turntable should address the problems of extraneous vibrations. These emanate from numerous sources including air and structural vibration from loudspeakers, groove modulation, stray electrical fields and mechanical imperfections in moving parts. In the Model 20/3, superb instrument quality machining is allied with fundamental physics. The higher the mass and stiffness of a body the less it will flex and vibrate; the duration of a vibration can be shortened by suitable damping.

Model 20/3 weighs approximately 28.6Kg (63lb), significant in relation to its size because it is density that matters. For example, the same weight of metal spread over a large enough area would be aluminium foil! The sub-chassis measures only 440mm (17 5/16”) by 350mm (13 ¾”) but weighs 11Kg (24lb). Its thickness 16mm (5/8”) resists flexing at low frequencies whilst high frequency resonance is attenuated by efficient extensional damping.

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