I've had these cables for my UE10's IEM's for years. Mine was specifically made by Peter Bradstock of Double Helix and I'm told was the 1st 8 Braid DHC Symbiote SP V2 Pure OCC Silver Type 4 Litz IEM Cable ever made.

I have to say the cables are fantastic. I also have to say, holy $#^T are they expensive. However, I figured I would have them for years and they will never wear out. I got these in 2014. I'm sure he has probably made many more by now.