Hello circlingkailas,
Ideally, you’ll want to pair the H9000 up with a standard interface as an aggregate device so that you have monitoring capabilities from the standard interface. The interface handles your headphone I/O as well as connecting standard studio monitors. From within Cubase, you can access the H9000 using 16 channels of USB audio. The outputs of the DAW, however, are routed through the standard interface. The H9000 by itself doesn’t provide dedicated studio monitor outputs with volume control, or as you pointed out, it does not have a dedicated headphone out.
