I want to eventually put my center on a stand in front of the TV, but for now I'm stuck with it on top of the TV. I have doorstops in the back to angle it correctly. The front of the speaker rests on the cheap little rubber feet it came with. I'm concerned that may not be the best barrier between the speaker and the top of the TV. I assume I would want something to cut down on the vibration between the speaker and the TV? Or is there something else I should be looking at? Any suggestions?