If you read up on Krell CAST (ACCS is identical) its main objective is to minimize the effect of cables. But, in my experience, you should use the best wire you can afford. The current domain signal transfer is very small and the swings from low to high volume tiny. And if you roll your own wire diameter it has to be very small as the mini-XLR connectors are extremely difficult to work. I used Furutech mini-XLRs and Parts Connexion silver core wire and had to drill the Furotech opening of the screw-on case to accommodate the cable size with 23 awg wires. It was extremely frustrating to say the least.
Finding the right size wire would have made my DYI experience easier.
http://www.audiolab.com/krell-cast-mmf-interconnect-cable/