Townshend Isolation Products.

I use Townshend Seismics under everything. Please consider their speaker podiums. They have an incredibly positive effect on the sonics. Like an equipment upgrade.

I put pods under my sub and all equipment as well as the rack isolation corners as even though the rack is isolated down to 3Hz, the individual components also vibrate. 

Their F-1 speaker cables, interconnects and digital cables are also fantastic. And fairly priced. 

Has anyone actually physically  checked to see any vibration in their speakers with no music playing and with music playing before using the podiums? 

Micro vibrations cannot be "seen". But you can hear the effects introduced into music playback.

I checked my speakers last weekend. I used a dial indicator on top of the speaker. I checked with no music first to see if there were any environmental vibrations or any other causes. Zero movement on the dial. Then I stomped around within 3 feet of the speaker and got a .002-.003 movement. This  seems like nothing really but since I don’t stomp while listening I figured I’m ok. The last measurement was with music on with 85 db peaks. The only movement worth noting came with the bass notes only. There was a movement of .006-.007 which again seems very good to me. My system is in the basement on concrete. It would be interesting to see what the movement would be on podiums. I may try some in the future to see.