Best Balanced interc. cables for powered monitors

I need your recomendations to buy balanced interconnect cables for profesionals powered monitors as Genelec, Dynaudio, Adams or Focal.
I´m working in a new system mixing profesionals powered monitors with Hi End CD Players and Preamplifiers.
Some options:
Tara Labs Air series
Acoustic Zen Silver Reference II
Harmonic Technology Magic Link II
The cables will be use between a tube preamplifier and the powered monitors, or between a CD Player like the Audio Aero Capitole direct to the monitors.
I will apreciate all your suggest or recomendations.
Thanks