I met Conrad Mas, the designer of the Avid turntables at the London high end show yesterday. The Avids work by routing vibration induced in the disc through the spindle/bearing into the subchassis.
What I thought was particularly interesting was that this relies on the arm/table connection to be strongly coupled - so SME and Rega arms work best. He commented that unipivots and Schroeders don't work well (on an Avid) because the vibration in the arm finds and upsets the most compliant element of the system.
He commented that Origin Live arms were not as effective because they slacken the bearings off compared to Rega.
What I thought was particularly interesting was that this relies on the arm/table connection to be strongly coupled - so SME and Rega arms work best. He commented that unipivots and Schroeders don't work well (on an Avid) because the vibration in the arm finds and upsets the most compliant element of the system.
He commented that Origin Live arms were not as effective because they slacken the bearings off compared to Rega.