Thanks to all who have responded since I advocated for safety.
To toddverrone, Good point, that is what I thought that a few inches in height would not make that much difference. I could even try those 2"x 2" squares that have a cork center and hard rubber top and bottom which have rails running across them. I used them before on components and they seem to make some difference, especially with my CD player. I bought them on line from an industrial parts company that offered them in different sizes. They were inexpensive, like $1.50-$2.00 per square depending on size. Unfortunately, I lost the company's web address when my computer crashed about 1 year ago. Vendors like Elusive Discs sells them but they are about six bucks per item.
When I upgraded to separates recently, I used what I had for the pre-amp, instead of the CD which sounds a bit different without them The player is an Ayre CX-7e mp and is fairly heavy at 35 lbs. Nevertheless, it still needs some vibration control under it. I will have to check out the Stillpoints items (recommended by member, "Zorro") but I know they are expensive. Nordost's new "Kort" metal vibration pucks are too expensive. Audio Prism makes some vibration control items that look good and are not too expensive. Music Direct offers them.
Tweakdom is a very crowned field and results can be spotty Thanks, SJ