I am looking to add an additional audio interface / usb mixer to my setup, to use in Cubase along with the MOXF internal interface. I need it for additional input sources and audio loopback.
Unfortunately, currently Win10 does not to provide native audio aggregate device support (still...), however this seems to be possible if the devices use the same ASIO drivers. I plan getting either an Yamaha AG series mixer or a Steinberg UR interface - since they use the same Yamaha Steinberg USB driver as MOXF - but I can't verify if the driver itself has multi-device support or not.
I would like to stay away from analog connections or ASIO4ALL, as they would dent either quality or latency performance. A unified driver seems to be a much more elegant approach, I am just not sure if it actually works. If anyone can confirm, I would very much appreciate it.