Technics SL-1500C Manual page 5

Coreless Direct Drive Motor
Achieves stable rotation
Coreless Direct Drive Motor
The high‐quality sound realised by the exceptional S/N ratio
and high rotation accuracy of the direct drive system
employed in Technics turntable products has captivated the
hearts of audiophiles the world over. The SL‐1500C inherits
the same high‐quality sound found in Technics' high‐end
turntable models. It uses a single‐rotor, coreless direct drive
motor in which the stator has no core and eliminates the
rotation irregularity called cogging. In this motor, the
magnetic force of the rotor magnets was improved to the
highest possible level, and the gap between the coreless
stator and rotor magnets was optimised, thus achieving high
torque performance equalling that of the SL‐1200MK5 while
eliminating cogging. Furthermore, the motor control was
optimised in accordance with the platter weight. As a result,
the SL‐1500C has realised high rotation accuracy and high
performance, and eliminated the need for parts replacement
and maintenance. Another advantage of the direct drive
system is its long‐lasting, high reliability.
Turntable
PCB
Housing
Shaft
Rotor Yoke
Magnet
Back Yoke
Shaft Bearing
Technical Information for Hi‐Fi Audio System
5