Dear @13blm: Perfect speed stability is an " elusive " term. A TT can run at 33.332 rpm with perfect stability ( all the time with out minute speed changes. ) and I can be sure that I least me can't detect it from 33.333 rpm.
So, as important as is TT speed stability I agree with you that are other characteristics that can have more " weigth " in a TT design like: noise and vibratios isolation of the platter, plinth and arm board through a well damping design to impede that all those kind of " distortions " can have any influence in the cartridge/tonearm combo. For me these is the real enemy or punisher of what the cartridge is picking-up from the LP grooves.
That zero tolerance fully isolation must be not only at measured macro levels but at micro levels that is where the stylus tip/cantilever works.
Speed stability per se can't define the TT quality overall performance inside some limits.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.
So, as important as is TT speed stability I agree with you that are other characteristics that can have more " weigth " in a TT design like: noise and vibratios isolation of the platter, plinth and arm board through a well damping design to impede that all those kind of " distortions " can have any influence in the cartridge/tonearm combo. For me these is the real enemy or punisher of what the cartridge is picking-up from the LP grooves.
That zero tolerance fully isolation must be not only at measured macro levels but at micro levels that is where the stylus tip/cantilever works.
Speed stability per se can't define the TT quality overall performance inside some limits.
Regards and enjoy the MUSIC NOT DISTORTIONS,
R.