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The Sony PS-X75 is a 2-speed, directly driven turntable with the Biotracer electronically controlled tone arm. The horizontal and vertical movement of the arm is constantly monitored by it’s own sensors, and this information is passed to a “feedback” system which can counteract and suppress arm resonances. This helps obtain the maximum signal to noise ratio by significantly improving tracking and stereo separation. Sonically, it provides an extremely stable image rarely heard by playing vinyl.
The stylus force is applied electronically by adjusting a control on the front panel, and can be adjusted whilst the record is playing. The correct anti-skating force is automatically applied when the stylus force is set.
Record size is detected by a photo sensor system. If no record is on the platter, the tone arm will not descend but will return to the arm rest. An optical sensor detects a record's lead-in and return points, and the linear motor guides the tone arm quietly to the precise position.
The PS-X75 maintains an accurate and drift-free speed by referring to a frequency generated by a very stable crystal oscillator, and with the aid of a speed monitoring system which utilises a magnetic pick-up head and a pulse signal derived from a magnetic coating at the inside edge of the platter.
An electronic brake system stops the turntable quickly and smoothly.
Sony PS-X75 headshell
© Red Diamond Audio 2014