An audio rack that really does make a difference.

Salamander A5, solid build, adjustable and expandable, with the extra bonus of all that extra cash you saved buy more music!

I've had a Timbernation rack for years. Highly recommended, especially because you can get it customized to meet any requirement. Chris is great to work with.

I had Salamander and it worked well for a time.  Advancing to the Symposium Foundation Rack Ultra was light years beyond.  The Symposium product is built with audio function in mind, not just a support system for components.  Constrained layers work, and when combined with Rollerblock vibration drainage devices it becomes a synergistic system.  You can easily hear the difference.
Of course there are other very good equipment rack systems available.  I found the Symposium products to deliver real high fidelity performance, well beyond simply supporting my audio components, and at a reasonable price compared to some others.  Symposium also offers a rack that is several times the price, and it's awesome, but that is out of my budget.
Best to you on your quest.

It is the single biggest killer of sound staging and depth perspective, it makes a hiend sound into midfi, because there's no artist to place and see with your eyes.
If you can't go to the side, maybe the behind you, or as I did in one place that allowed it, the next room.

Not really a deal breaker in a well disigned room and proper speaker placement.  I have done it both ways and get great sound in either setup.  Shorter cables make a bigger difference in my experience.

Look at Symposium Foundation rack will be the best sounding rack for your money.