Hi,
The answer to this could be tricky...
If you are deep into audiophilia, then the answer is "yes"!
Industry gurus like Pierre Sprey of Mapleshade and Mr. Walker of Walker audio believe that you should treat it like any component. They like thick maple platform with brass footers.
If you do not want to go to that extend(it depends how sick you are :) )at least keep it away from the carpet which can negatively interfere with the AC power delivery because of the electromagnetic fields sourrounding anything and everything that carries AC...
Bottom Line: Personal experimentation is the most important thing to do when it comes to your setup, your personal taste, your music, your ears, your ...
Please, experiment and try to report back with your findings...This is how a community benefits...