If you prefer to drop another cat 5 line. you could use these baluns that convert 4 XLR signals down a cat 5 line. There are different configs available too. Of course there are single line versions also.
https://www.markertek.com/CATV-Headend-Interface/CAT-5-Transmission-Systems/Audio-Over-CAT5-Systems/Energy-Transformation-Systems/PA203F.xhtml?ETS-PA203F
Kris
Indiana, USA
