These isolation monitor stands really worked. I have used them with speakers from B&W, ELAC, and HSU Research. They did what they are supposed to do (as described below) and made the speakers sound much better!
This pair of ISO-L8R155 Medium-Sized Studio Monitor Isolators prevent the transfer of speaker cabinet energy to surrounding surfaces, effectively isolating the speaker. By allowing the speaker to perform in free space, it's able to sound the way it was intended.
The height and tilt angle of the ISO-L8R155 are adjustable to optimize speaker positioning relative to the listener. The ISO-L8R155 isolators are designed to support medium-sized monitor speakers no heavier than 35 pounds. They can be set to raise your speakers 3" from the supporting surface.