SME (suspension), AMG (mass), and Technics (direct drive).
What are the advantages and disadvantages of the different types of turntables, and of those in particular?
Aside from listening, which is most important, Paul Miller’s lab results from HiFi News & Record Review’s summary of SME’s newest Model 60 say a lot.
It comes up Aces in terms of pitch stability (“the most pitch-stable belt-driven deck we have tested”) with bearing performance from platter and tonearm that push the limits of measurement along with a new tonearm tube that is the subject of another thread of “What Does It Take To Surpass A SME V?” that PM describes as, “The freedom from more complex resonances, and general clutter, is quite remarkable”
https://www.hifinews.com/content/sme-model-60series-va-turntable-lab-report
It’s an amazing achievement.