I'll share a handy tip for anyone that has Genelec smart monitors. You can make a breakout cable that lets you run just a cat-x (network) cable and a power cable to the speaker and use all of the speaker's features. GLM uses pins 1&2 of the network cables used to connect the speakers, and it can be connected in a star configuration rather than daisy chain. Genelec even sells a hub for this which is just a simple passive box with 10 RJ45 jacks on a PCB shorting pins 1&2 together for all 10 jacks.
So that leaves three more pairs to run balanced connections. One for analog in, one for digital in, and one for digital pass through. If you use SFTP or SSTP cables (recommended, they're cheap) all the pairs are shielded from each other and you can connect the ground pins for the three XLR connectors. I made mine from some cheap cat-8 SFTP cables and neutrik XLR connectors, only about 8 inches in length. I use RJ45 couplers to attach whatever longer length cat cables I need. There are ground preserving and ground breaking couplers so you can lift ground if you need to, although since it's all balanced probably won't need to.
I originally had breakouts at the other end as well, but I've switched to AOIP and the AOIP boxes I'm using have their outputs on DB25 connectors. So I got some DB25->RJ45 breakout boards and run those into a 24 port RJ45 punch down patch panel. So now I just plug the speaker's cat cables into the patch panel. GLM is wired to all the patch panel ports. Each port also gets an analog channel, and each adjacent pair of ports have digital sent to the first port, and then the digital pass through connected to the digital in of the second port. No issues with impedance matching from y-splitting AES/EBU that way.
Since I have a lot of SAM monitors getting it down to a single small cable to each from the source and no GLM daisy chain was really nice. Power can come from the closest outlet to each speaker.