Hi Juan.
Here's the deal as best as I can help. There are two connection standards for Audio Balanced XLR connections; AES and EIA. Most home audio products are AES so, good chances are that your Kora unit is AES. Otherwise, I would certainly think they would make specific mention of an EIA connection because it's out of the norm.
Regardless, you won't hurt any thing by using a wire that's AES terminated with gear that has EIA inputs and/or outputs. That's because Pin Configuration for AES is: Pin 1 = Ground/Pin 2 = +Signal/Pin 3 = -Signal. EIA is: Pin 1 = Ground/Pin 2 = -Signal/Pin 3 = +Signal. So all that's happening is a polarity reversal between the two signal conductors when used with EIA out and AES in.
Hopefully you have a polarity reversing switch somewhere in the chain (usually on the pre-amp if there's going to be one) to account for not only the pin out on the gear but also for the possibility of recordings, and/or the number of gain stages inside of each of your electronics that can reverse the signal polarity from positive going. If you don't have a switch but would like to have a means for switching polarity, we offer a neat little gadget to facilitate switching. There's a post of it in the Market Square at;
http://www.audiocircle.com/index.php?topic=8002.msg68321#68321&highlight=#68321Hope this isn't too confusing. If I'm not making sense, I usually suggest to just give up audio and get in to extracting deer urine. At the least, it's a more predictable hobby and I understand you can make some decent money at it.
http://www.audioasylum.com/audio/cables/messages/91680.html and follow the rest of the thread.
