@chakster
(Technics feet are)
100% junk on SL1700 (and mk2 too) just like on any other technics OLD turntable.
Not a very objective statement. There’s more to the story also. The feet are are designed to work as part of a system. It is the whole system that either accomplishes or fails to accomplish the goal of isolation. This comes with varying degrees of success. The SL-1200mk2 for example is for most intents and purposes, unsuccessful at isolating vibration due to its poor secondary and lack of tertiary isolation (sprung rubber feet and rubber chassis) which lacks diversity of spring rates, compliancy and natural resonance frequencies.
The majority of lower end Technics models do much better with only sprung rubber feet and TNRC chassis, thanks to diversity in the isolation system.
Back to the upper mid range, the SL-1700/1600/1800 mk1 and mk2 variants incorporate highly successful sprung suspension and TNRC chassis on simple rubber feet. If you replace those with the better rubber/sprung feet from the SL-1200mk2, you end up with an isolation system that is so successful in its mission that you couldn’t want for more. That is because it incorporates elements with difffering spring rates, compliancy and natural resonance frequencies. Each on its own cannot be as effective at successfully isolation vibrations as the whole system.
Technics: the science of sound.