You do not want a speaker stand or a speaker resting on carpet and rocking about. You want to be sure that the speaker/stand Is in solid contact with the hard surface of the floor. My stands spikes make solid contact with the concrete beneath the carpet/pad. The stands are filled with Atacama Atabites...my stands do not budge, nor do speakers. Blutac is used between speaker and stand.
Speakers on carpet over concrete
My system is current located in a partially finished basement. The floor is thick carpet over a thick pad on top of concrete. Does it affect performance of the speaker differently if spikes are used that pierce the carpet and pad, contacting the concrete below versus removing the spikes and having their "feet" resting on top of the carpet which is also a bit less stable? I'm sure I'm not the only one with a system installed on carpet over concrete. How are yours set up?