XLR or single ended cables and why?

Sorry, It's the Krell 40oXi and the companion SACD Standard. Both has balanced connnections. I have numerous singled-ended RCAs from Kimber, H.T,Audioquest...Cablings are expensive nowadays and I am just abt going broke for my hobby.

Shadorne, Is it a big deal to have an extra increase of 6db with XLR ? That's a lot of extra juice. Running either at 4 or 8 ohm, It requires double in wattage power for each 3db increase. Isn't it ? BTW, I have my MD. pulled the wool out of my ears the other day. Thanks for the advise.

" 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.

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.

I hope the following issue will not lead to another subject: We agree on if using XLR connections with fully balanced circuit there is an increase in sound pressure level abt 6 db. If I use 4 ohm speakers, then according to spec, my amp will operate at 400 watt. With 6 db increase in SPL by using XLR connections, would my amp operate at 400 watts x2 x2 = 1600 watts per channel. Keep in mind abt the fact that every increase of 3db in SLP requires double in wattage to produce such 3 db increment. Simple math but does not sounds logical. Any thoughts?