Looking at that Technics webpage again, the full statement is...
"Sine waves stored in ROM are used for the control waveforms at constant speed, and this achieves smoother and more stable rotation compared with using the simple sine wave generation with an external coil as in the conventional SL-1200MK5."
sleepwalker65,
That omission you accidentally made actually changes the perspective and presents new turntable as superior in what you considered its flaw. There are even two graphs right there. They show smoother waveform of the new motor, as promised by the text. Not perfect, but smoother.
https://www.technics.com/us/products/grand-class/direct-drive-turntable-system-sl-1200gr.html
"Sine waves stored in ROM are used for the control waveforms at constant speed, and this achieves smoother and more stable rotation compared with using the simple sine wave generation with an external coil as in the conventional SL-1200MK5."
sleepwalker65,
That omission you accidentally made actually changes the perspective and presents new turntable as superior in what you considered its flaw. There are even two graphs right there. They show smoother waveform of the new motor, as promised by the text. Not perfect, but smoother.
https://www.technics.com/us/products/grand-class/direct-drive-turntable-system-sl-1200gr.html