Music playback applications via computers and on-line streaming software services are designed to stream their outputs to a single stereo set of outputs (outputs #1 & #2 by default).
When attempting to playback pre-recorded music on my computer hard drive (not via DAW software ), or stream music through apps on my computer and H224, I can only hear my music through monitor Outputs #1 & #2 and not through Outputs #1, #2, #3, #4 simultaneously.
by Sterling Audio | Feb 25, 2021