M-AUDIO Delta RBUS - Manual (Page 49)

Now click on the Delta Control Panel’s "Patchbay/Router" tab. In the
very last column of the Patchbay/Router page, click the radio button
"Monitor Mixer" to connect the monitor mixer’s stereo output directly to
Delta analog outputs. Now, everything that we hear at the analog
outputs will reflect our settings in the Monitor Mixer page.
Select the "Monitor Mixer" tab of the Delta Control Panel. The default
Master Volume fader settings are 0dB and unmuted, and all other faders
are set to full attenuation (-144dB) and muted. We will need to adjust
these to our preference. The screen capture on the next page shows the
settings that we wish to achieve.
49