Rose RS-150B sound multichanel

Hi! I have RS-150B connected to a multi-channel amplifier with a digital cable and with rose tube I can’t listen to multi-channel only in stereo … Can it be set somehow?

@piotrek1609

The RS150 is a simultaneous unbalanced (RCA) and balanced (XLR) output.
You can listen alternately by connecting RCA and XLR to one amplifier and selecting the input of the amplifier.
However, audio output through HDMI, speaker output, pre-out, and optical output are not output at the same time.

Thank you