Originally Posted by S.t.a.t.i.c
I'm buying Neutrik XLR connectors and Klotz microphone cable, to assembly a active monitor cable. Now I have couple of variants of cables to choose from and I am not sure which one should I choose.
monitor use at any reasonable length there will be no difference.
The differences in these cables are different gauge wire and heaver outer sheaths. Those factors can make a difference in their primary intended use as low level mic cables in terms of signal loss when using very long mic lines (100's of meters), and of course, in resistance to [physical] damage when used in hostile environments.
When used for typical active speaker cables at line levels and typical short lengths (50 meters or less), there will be no audible difference, and unless you will expect to have people walking over the cables, the thicker outer sheath of the MC2000 will be of no additional value. Any of the Klotz cables listed, and many other balanced cables, will work fine and equally well. All will have the same degree of signal transfer and rejection of induced noise. Although the shunt capacitance is slightly different, at any reasonable length for active monitor use, the differences will not be audible.
Since active speaker cables are usually not often connected and disconnected, the Neutrik connectors with gold-plated pins are usually preferred. For mic or patch cable use, when connections are being re-done often, the silver plated pins (thicker plating, longer mechanical wear/life) are usually a better choice.
For passive monitors the cables will be carrying much, much more current, so heavy gauge conductors are an advantage for reduced signal loss and improved damping factor. Don't use mic cable on passive monitors.