I'd agree with GeoffKait about set up. The cones I use under the purpleheart and padauk bases are Golden Sound cones with squares. And between my components and the wood bases I put springs that Geoff sells. It's a set up (not the wood type itself, but the springs and cones) that Geoff recommends. And I can say it all works very well.
At a somewhat higher price point, the fabricated Marigo Isothermal platforms might be worth looking at. As I said before they do work extremely well to steady up my speaker baffles. I haven't tried them under electronics myself, but I am going to guess that they are very good for those too.
