Star quad cable: Why does the white wire have noticeably less resistance?
I suspect it's an issue with your measurement technique. The specifications from the product link provided list the resistance, and there are only two values, one for the shield, and one for the conductors. That each conductor isn't listed separately implies they are all the same.



Further, that this is sold as a microphone further implies that the resistance is the same for each conductor. Were it not, it would not work as a balanced cable.

Measuring small resistances (certainly &lt;1Ω) is difficult with an ordinary ohmmeter. In this range, the resistance of the test leads and the contact resistance can be significant. The precision of some meters may not be sufficient in this range. It can take some care to get an accurate measurement.