Which RJ45 cables for Beolab 18 / 19 with Essence MK2

Dear all

We will move to a new apartment within the next months.

Currently my Beolab 18 / 19 are connected with WISA (Transmitter 1) to an Essence MK2. I will step back and connect them by cable. The cable conduits are ready for Powerlink and electricity (see picture). The distance between the Essence MK2 and the Beolabs is around 12m.

Shall I buy “normal” quality Cat7 patch cables (15m around 20€) or “high” quality Cat6a patch cables (15m around 30€)?

Is from B&O an RJ45 Y-splitter available? The Essence has 2 PL outputs but I need 3 2x BL18, 1x BL19). Worst case i need the Powerlink RJ45 distributor.

Any suggestions from experience made by someone here?

For B&O Multiroom, the cables in the wall are Cat7.