Using Two Dac Simultaneously

[Snoopy8]

"When i'm plug my two dacs at the same time to my Snakeoil os based streamer, Os accepts two of them. You know actually lms can give dac change possibility to user. My theory is if i modify the upmpdcli to accept two of my dacs, i can change my dacs on lms control client simultaneously. 
Is this possible?"

Very late answer, but yes you can output to 2 DACs simultaneously. You need to modify upmpdcli's mpd.conf.template, please see this Wiki page which applies to  both upmpdcli and MPD.
https://www.snakeoil-os.net/wiki/Players...al_outputs