Zu Druid Mk IV owners, what speaker cable to use?

Don’t throw heavy objects at me please, here comes another Zu thread.

I have set my mind on a pair of used Druid MkIV for the second system. One particular attraction being that Zu isn’t distributed on the German market, so far. I’m buying these from someone who imported them himself.

Which is also where one or the other risk lurks. For instance, I will not have the opportunity to audition the cables that judging from many threads appear to be almost indispensable in this particular speaker’s case: Zu’s Libtec. So I’ll have to do what I try to discourage other people from: shut my eyes and just buy them. Unless, of course, you found other speaker cables to be at least as well-matched or even better for whatever reason you may care to share.

I’ll drive the Druids with a 2x15W Unison S2K tube integrated. They’ll be in a room of some 20 sq.m but will have ample space from the walls. The room has a large window with a light curtain but there is also a bare reflection pane from a mirror. Floor is covered with wall-to-wall carpet (by no means fluffy, though). I will mainly listen to jazz here, also solo piano, acoustic guitar and the occasional string quartet.

Much obliged for any ideas or recommendations.