Materials and construction of the rack/stand will be audible on a high resolution component.
I don't agree with Samhar's statement of "The more vibrations you reduce to/from the amps the cleaner the notes will be." There will be a rack/stand that will be less harmful and more sympathetic with the sound you want to achieve. Granite and materials like my Polycrystal rack tend to remove harmonic overtones thereby emphasizing the leading edge. Some may describe the sound cleaner, but to me it sounds thin and bright which I don't like.
I would go with the Mapleshade stands. Try the Grand Prix if you want and resell if you don't like them.
I don't agree with Samhar's statement of "The more vibrations you reduce to/from the amps the cleaner the notes will be." There will be a rack/stand that will be less harmful and more sympathetic with the sound you want to achieve. Granite and materials like my Polycrystal rack tend to remove harmonic overtones thereby emphasizing the leading edge. Some may describe the sound cleaner, but to me it sounds thin and bright which I don't like.
I would go with the Mapleshade stands. Try the Grand Prix if you want and resell if you don't like them.