Good morning, gentlemen. Generalizations are also something that is frowned upon by the forum owners, as outlined in the TOS.
Please allow me to clarify a bit. I have had many a silver based cable come through these doors. Not all of them are bright but they are all definitely "enhanced". My suggestion was based solely on my experience with silver based cables and the TNC, TNV or Beryllium tweeter offerings from Focal. All of these tweeters are extended in range, extremely detailed, unforgiving of upstream gear, highly responsive to cable upgrades and while a silver based cable can sound decent [read good] at lower listening levels, at reasonable to higher listening levels, the level of "detail" and unrealistic "sizzle" is NOT a pleasure to these ears. With this particular combination of cable type/speaker(s), silver had tended to alter the entire frequency range and not to the positive end of the spectrum. To my ears, the combination of a silver based cable and any of the tweeter offerings from Focal would be something that from experience I would recommend against. The only exception would be if the user listened mostly at lower listening levels.
While there may exist an exception or two out there [like the suggestion from microstrip with the Crystal Dreamline], I will stand by my comment based upon my own ears and direct experience with Focal speakers and silver based cables. Silver may have it's place in some applications [and I have heard great results from silver based cables in various applications], just not with Focal IMO/IME. pelo911 has been offered some great, and IMO better suited, suggestions within this thread. Suggestions I would follow well before considering a silver based cable for pairing with his Utopia's.
Tom