Is there a difference in balanced cables??

I just compared 2 different XLR interconnects in my system - Acoustic Zen Silver Ref MkII and Audience AU24. They sound very different.

AU24 is a very good XLR interconnect.
But in comparison to AZ Silver Ref MkII, the AU24 appears to be a little closed in. Highs are a bit rolled off, bass is muddy and it doesn't have the attack and punch of the Silver Ref. Also, soundstage is flatter and kind of 2D with the AU24. Not as wide and not as deep of a soundstage.
I'd say that AU24 XLR compares to AZ Matrix Ref MkII, but the AU24 single-ended cable doesn't even compare to the Zen Matrix Ref II. At least in my system.
Acoustic Zen Silver Ref MkII is very resolving, detailed(but not hyper detailed), more precise imaging and soundstage is wider and deeper. Bass is deeper, tighter and more detailed than the AU24. Midrange is more open. Highs are sweet and detailed.
I have Silver Ref II from cd to pre, Matrix RefII from pre to amp, Satori ShotGun speaker cables.

Another thing....Audience powerChord is amazing. I'd take the powerChord over the AZ Tsunami Plus any day. But as far as the interconnects, just not my cup of tea. Don't get me wrong though, they are very good. It's just that the Silver Ref MkII is better...at least in my system.

Yeah AU24 balanced cables are better than AU24 RCAs. They are different cables altogether. XLRs are dual run in each cable. They cost double of what the AU24 RCAs cost.