Go and buy a sheet of high-ply birtch or oak (or any other good looking one-sided plywood) and make your self retangular boxes a little wider and longer than your componets and about 2-4" high. Fill it with play sand and place a final board on top "floating" in the sand. Place your componet on top. You can round the corners and the tops to make it look nice: either clear-coat it or your chioce of finishes. Cost around $60 for 3-4 boxes and a few hours of work and can look real nice. YOu can get all pro and dove tail where the boards meet if you have the skill and equipment. Make sure you epoxy the seams inside or you'll have sand eveywhere!
Works better than most commercial isolation products.
Works better than most commercial isolation products.