Can an audio rack be that important?

I think it really depends on the room & more specifically the floor. If you have a cement slab floor  it makes life much easier. Generally, you want to couple to that floor as directly & firmly as possible. Putting the equipment right on the floor should be fine or if preferred, any decent rack or even cinder blocks topped w/ a piece of granite or solid hardwood cutting board. Suspended wood floors are much more of a challenge & in my experience, often the opposite is best whereby you want to try to decouple the equipment from the floor it the vibrations & resonances it can create. This is especially true w/ speakers.. There’s a lot different theories on how to do this. I use 4” x 4” squares that are designed to mitigate vibrations for industrial equipment. They’re  layered w/ relatively hard very grippy rubber w/ a core of pretty dense foam. They’re inexpensive & seem to work very well w/ my speakers .

Has anyone ever seen or used the Tri-Art bamboo rack I am interested in a four shelf model for my Auris Fortissimo tube and Sugden a21se signature Goldnote mono blocks Goldnote DS 10 a with PSU Evo 10  and AYON S10 MK ll signature apparently bamboo has some great characteristics for isolation 

LOL

Solidity, stability, mass, and damping - you don’t need to spend a lot.

I made one out of Stainless Steel, Aluminum & Copper with every component of the rack isolated form each other with Pure Virgin Teflon. Next I will remove the feet from all the stereo components and replace them with a screw-on suspension that will be integrate and isolated from the rack shelves. It is fully adjustable for the height and width of the components so every time I change something I can adjust it. Might not be something you really need but it organize the gears and requires shorter cables.

I just post a picture when I first install it on my profile. I don't know how to post a picture.