FWIW I use this stuff, used by the km in professional audio gear (such as recording studios and outside broadcast) for the princely sum of £1.82 per metre.
I use it with Nutrik XLR connectors
https://www.canford.co.uk/CANARE-L-4...BLE-Deployable
And I'm pretty certain it is not directional ;-)
Eat your heart out Nordost.
Craig