is there any place that shows the procedure?
Wil it be too challanging if it is the first time doing it?
You can contact ALO Audio and see if they offer any help. I believe they used to recable Ultrasones.
Do you feel confident enough in your technical/soldering skills to risk damaging a set of $1,000+ headphones?
Edition 8, are one of the easiest headphones to do, if you would like to PM me, i can talk you through it.