Just a thought but whenever arranging or re-arranging components physically, particularly low level phono gear, be alert to any potential RFI or EM noise issues that could be introduced by something as simple as a power wire in a different location. Distance between components and from surrounding wires transformers, etc. can all make audible differences. It took a lot for me to get a handle on this. Adding mu metal foil shielding around my step up transformer was required to get things sounding best. The physical nature of the table or rack itself may have little to do with it as long as it provides a very stable platform. Keeping things low to the floor helps. Having a turntable sit way up high is often a mistake and putting that firm foundation in place much harder.
Adding weight/mass to the platform can usually only help and not hurt.
Whatever the case, good luck in solving whatever problem might exist.
Adding weight/mass to the platform can usually only help and not hurt.
Whatever the case, good luck in solving whatever problem might exist.