What's Best To Put Under My Speakers?

My wife's head.
It's hard as a rock and shows no signs of sound retension.

Check these people out: http://www.oregondv.com/Floor_Standing_Speaker_Stands_Plinths.htm

Thanks to both of you who responded. I'll look into it. Mark

if you want the best..imo..platforms to place under your speakers the sistrum platforms are superb. i have tried many different ways to isolate my speakers from both external vibrations and internal vibrations and nothing comes close to the results obtained from the sistrum platforms....i currently use the sp-1's under my piega c-10 ltds as well as under all of my other gear.the results are amazing. go to their website ..audiopoints.com for more information..

Do your speakers have threaded holes for spikes? If so you could try purchasing threaded spikes. I have used Black Diamond Racing cones before installing the speaker spikes with good results. Caution using them without studs - the speaker could be pushed or nudged off