Does anyone use wood for vibration control?

I prefer maple butcher block under my Joule Musicwood amps and a harder material under the Joule Mk III amps.The rest of my shelves are Black Diamond Racing carbon fiber shelves under the TT, pre, phono and CD.

hard, dense wood (like ebony) with one side treated with piezo-electric vibration damping. 

Jenga Blocks

Ironically perhaps the type of wood is much less important when used as the top plate of an isolation stand due to the fact that the top plate is isolated right along with the component sitting on the top plate. Obviously, you still have to deal with induced vibration from motors, etc. as well as airborne vibration. But they are relatively easy to deal with by appropriate damping techniques. Marigo VTS Dots (constrained layer dampers), for example oh, and correct mounting techniques for the component and iso stand. Thus establishing a comprehensive vibration management program. Hint if you can’t decide on which type of wood to use, don’t fret as nice 3” thick slabs of granite or bluestone work very well, indeed, either as a support or as top plate for an iso stand.