I've made my platforms from hard rock northern maple. Maple seems to be a default go-to wood because it does sound good, it's easily available in the quantities a manufacturer needs, it's environmentally responsible, and it's reasonably cheap. Is it the "best?" I'd like to experiment myself with other woods to find out. In particular, I'd like to get some Sitka spruce and make a platform. I know Altmann audio claims spruce has remarkably good qualities for supporting their Attraction dac circuits.
Best wood for an isolation platform
If I want to build my own integrated amp platform and a CD player platform, what is the best wood to use? What about the spike/cones? Where is a good place to get them? Has anyone used the inverted pucks and steel ball from FIM? It seems like a great way to eliminate any vibration.