Golden rule of HiFi fever is to try and try and try... My Contour I is sitting on a big stone borad (6' x 1.5') on top of a fixed, low wooden cabinet. Some cheap, heavy duty shock absorbing rubbers (design for washing machine to sit on) were placed between stone and cabinet. Tried brass nail before but sound too sharp with no bass. Tried anti-slip mat that it work much better. Set-up is different that effect should be different. However, those mats are very cheap compared to any HiFi accessory. Worth a try.
One layer only. Too much will cancel off the moving coil action, thus, weaken some frequencies. Should start with just 3 or 4 small pieces at different positions.
However, it still can't compare to sitting on a speaker stand with feet of clearance around...
