XLR or single ended cables and why?


Few audio equipments reviewers swear by their reputation if there is any that XLR connections improve quality of the sound sonically. Some stated there is none. Can someone scientifically help me to make a wise decision to choose between XLR and singled-ended cables?
andrewdoan
" For this reason, one should never use the one with(-) as braid shield."

Tvad, would you please explain a bit more. Most of my ICs have one (+) connected to the pin the other (-) connected to the outer side of the ring on top of it is the barrells. Except for Kimber ICs where they use up to three conductors.
Reb1208 and Andrewdoan, my statement was copied directly from the Cobalt Cable website. Any errors are due to the info published by Blue Jeans Cable...
Tvad:
my statement was copied directly from the Cobalt Cable website. Any errors are due to the info published by Blue Jeans Cable...
It's sad that it was written in the first place and even more so that it makes the average person believe such nonsense - and quote it!
Not your fault, but it's not a good thing...
If nothing else, it convinces me that not all cable manufacturers...or perhaps just the marketing departments...know what the hell they are talking about. I'll certainly cross Cobalt Cable off my list of potential suppliers.
Tvad, I talked to one of the cable tech.rep last week and you were right on the fact that they did not know for sure what the heck they are talking abt. As a consumer, the " I think..." does not not worth a "shot" to me. They dance around the issues as good as their sales rep.