You may want to try to place your turntable on a wooden block(butcher block) or granite plate with Vibrapods under the block/plate.
Vibrapods works wonders of eliminiating vibrations. There are different weight limits for different Vibrapods so calculate the approximate weight of your turntable plus the block/plate before purchasing.
Vibrapods works wonders of eliminiating vibrations. There are different weight limits for different Vibrapods so calculate the approximate weight of your turntable plus the block/plate before purchasing.