Not unlike a good speaker stand - solidity, stability, mass, and damping. Give your equipment stable, solid, damped support and let your choice of footers and mass loading do the rest.
I use a combination of very solid and heavy wood furniture, and a Sound Anchors steel stand that is sand-filled for damping, and supported on elastomeric footers.
If I had a bunch of money to spend, one ot these would be nice.