The new SawStop is emitting a really shrill whiny noise.  I’ve tried several different blades, including the SawStop blade that came with it, with no difference.  What I’ve found is there seems to be some interaction between blade and the zero clearance insert (ZCI).  If I remove the ZCI the noise goes away.  Likewise, if the blade is below the ZCI there is no whine. The higher the blade is above the ZCI worse the noise is.

The sound is incredibly irritating, even with full hearing protection on.  Hopefully SawStop can shed some light on this.