watchnerd
Grand Contributor
See, the thing is I don't trust that people at Rega have made an effort to figure that out and it correctly. Technics, Sony (and probably a few others) make their plinths out BMC (bulk molding compound—the Sony Biotracer tables are even supposed to be made of a special variety that as low "Q" value or something). Rega can't even make a table that spins at 33.33rpm. Even the models I think are expensive (like P6 which is like $1200 CAD) purportedly have speed problems. There is whole business dedicated to Rega "upgrades" which people buy. I don't what percentage of tables are "off" with respect to speed, but there are a lot of user reports (and solutions of varying levels of "kludge") on issue. Some people even think that Rega makes their tables "fast" on purpose to give them a specific sound.
I feel like the chances of Rega implementing this competently are pretty low. They don't even have official measurements (or do reveal them) on their tables.
I wasn't totally sure about whether the concept was sound. I attempted to look into the vibration reducing mechanisms for scientific instruments. There is some complicated stuff going on. The simplest among them was a (presumably very fancy) rubber mat. Although I feel you can have the fanciest structure for you plinth, but how much of a difference is it going to make when you have a thing that spins at a reasonably high frequency (motor) right next to your platter connected by a rubber band that also can also potentially vibrate? I don't know the answer and every article with respect to turntables seems be dedicated to disparaging the direct drive.
I wasn't commenting Rega's implementation skills.
I'm just saying, theoretically and from a physics POV, there is more than one way to deal with the issues, and they're all compromises.