Ultra-low capacitance but shielded RCA terminated cables, the shorter, the better - never longer than one meter. And an external chassis ground cable, as heavy as practical for minimal resistance at the ground plane.
Anything else would be wasteful and unnecessary, and most likely, inferior.
@stager Without any consideration for my components, cables, or their proximity to each other, this statement, especially "wasteful and unnecessary, and most likely, inferior", is nonsense. (and if true, why do you sell XLR cables?)