Mine are bolted to a steel plate, which is then bolted to the Sound Anchor stands. I placed a small thickness of Isodamp elastomer between the speakers and the plate but that is more to protect the speaker bottom than for damping or sound improvement. My guess is that the best approach is dependent on several factors such as the speaker's dimensions, weight, and internal structure and the weight and stability of the stand. My speakers weigh 110 pounds each and the stands are 70 pounds so pretty heavy for a monitor.
