It is equally unlikely to convince an "audiophile" user that a cable has no sound as it is convincing a "proaudio" user that it has!
Funny you should mention that, because that's exactly the "motto" of Anticables (hence their names): to make cables that don't have any sound.
Cables never add sound quality, they only subtract, and in this case, and with my equipment and in my room, the cheaper Canare cable subtracted more than the RCA Anticables I had since before. Other system and ears might find other results.
However, I have a hard time accepting opinions based on speculations, like someone saying A sound better or equally good as B, without having tested B, especially when I myself have tested both A and B.
Besides, its hard to find more different cables than Canare and Anticables 3.2: one is quad format, other is single (very thin) wire, one is heavily isolated, other is not isolated, one is copper, the other is a silver/gold alloy. It would actually be strange if they sounded exactly the same.