I have used the Aurios under a preamp, and they worked best on top of a 1" maple shelf. You can get maple shelves made to order in size, thickness and finish from places like Timbernation. You might try at least 2" thick if possible.
You need to be sure the component is evenly balanced in the center of each of the Aurios. Once you get it in place, give it a slight push to one side and it should move freely back and forth. You don't want power cords or cables twisting the unit to one side of the center of the Aurios or the other. This will reduce the isolation provided.
Aurios work best to absorb lateral motion. If your primary vibrations are vertical, for example a suspended second floor, they may not be the best solution.
You need to be sure the component is evenly balanced in the center of each of the Aurios. Once you get it in place, give it a slight push to one side and it should move freely back and forth. You don't want power cords or cables twisting the unit to one side of the center of the Aurios or the other. This will reduce the isolation provided.
Aurios work best to absorb lateral motion. If your primary vibrations are vertical, for example a suspended second floor, they may not be the best solution.