when i saw this in audioasylum's forum, it reminded me so much of my dad. and the many afternoons i spent helping him saw and drill to make his audio cabinets. now, it's as easy as driving to ikea.
"just buy an ikea lack side table and screw in some spikes where the legs would have otherwise gone (you can use spike cups if you are concerned about your floor). the table's dimension is just shy of 22x22. these tables are wood veneer over fiberboard and particle board, which sandwich a fiber lattice honeycomb core. as such, the design is that of a rigid, low mass, rapid energy dissipation support & isolation platform. this is a cheap but outstanding tweak. place your favorite cones between your cdp and platform."
sounds good to me. read more here.
other audio visual cabinet hacks:
> a hip mobile music console
> fixing the gaje speaker stand