Heres one of our signature theta racks ( whose detail pics at last i have gotten around to posting publicly )
This is one of soundfoundations' higher end offerings
Built from composite materials
Aero grade cross braced aluminum extrusions and steel frame spiders
The rack is not heavy yet one of our most sturdiest with a safe rating of 100 kgs / shelf
We had long been wanting to achieve this combination, since such racks tend to be the most natural sounding for even the most delicate and finicky systems
it addresses of all the three vibrations that are detrimental to the purity of music
i.e ( vibrations from the floor/surroundings that affect your equipment , micro vibrations within the electronics , vibrations that are carried from one equipment to another through the rack itself)
Height adjustable spiders to take care of upgrades etc
Independently levelable shelving
Individual shelf isolation
hardwood maple polish shelving is used since we like the timbre it imparts to the music
Ofcourse one can upgrade to the high performance composite shelving
Also one can go all out in terms of isolation too and substitute the stock levelable neoprene inserts with our very own ceraballs or spikes- in so doing achieving a different level of isolation
for each shelf
current Base spikes are composites of a fibre and brass.We are also working on aluminum brass tipped spikes
Some users have also reported going completely shelf less with the rack by replacing the neoprene levelable inserts with ceraballs and placing their equipment directly on them ( thereby removing the shelf from the equation