The rack, never could understand why we would want to put our components so close to each other. The magnetic fields of the components certainly interfere with each other. At least 2Ft. between components is required to dissapate the interference of fields.
If you have the room ,layout your components side by side on wood shelfs [ plinths ], say Spruce, Maple or Ebony . You can purchase speaker stands to support the wood plinthes. I use Target stands [metal] grounded to earth ground with sand boxes screwed to the top of the stand. The plinthes [wood] sit in the sand. I then use cones to drain the resonance to the plinth. I located the stands using a Guass meter and placed them according to lowest reading. I hear more music with no hardness, great clarity and natural detail.
However if space is a major factor, I will go along with LoneWolf's recco. Trully bang for the buck.
rollo