My impression of the Acoustic Dreams Dead Balls are that they offer increased bass articulation, inner resolution and detail retrieval as well as quieter operation. They exceed my Sand Box as well as other isolation devices I have tried which include the following: Gingko Balls, various brass spiked feet, vibrapods, sorbathane feet, and maple platforms. I will be comparing the Acoustic Dream Dead Balls to the Adona Platforms in a week or so.