Audiophilepure

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“Instead of a fixed motor or drive speed, Fern & Roby’s design employs the synthesis of waveforms to measure the speed of the platter 48 times per revolution by way of a “precision-cut optical interrupter wheel” mounted on the bottom. Essentially, this allows for a smaller (and therefore quieter) motor to bring the platter’s massive weight slowly up to speed, and then reduces the motor’s power to a bare minimum as the platter spins with its own momentum, making incremental adjustments (.003 percent per spin) along the way to keep your records at speed with minimal effort. An LED at the side alternates between green and orange to indicate adjustment”

Read more: http://www.digitaltrends.com/home-theater/fern-roby-100-pound-cast-iron-turntable-vinyl/#ixzz3fHkl5941
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