My MIDI hub is a MOTU midi express 128:

https://www.amazon.com/MOTU-MIDI-EXPRESS-128-Express/dp/B0002J1PNK/ref=sr_1_1_sspa?ie=UTF8&qid=1546546387&sr=8-1-spons&keywords=midi+express+128&psc=1

I drag and drop my BiaB files into my DAW, Studio One Pro 4, then assign each track to a MIDI sound. Sometimes it is a hard synth but most of the time it is a soft synth.

As far as mixing audio I strongly suggest one uses the mixer that comes with your DAW and not an external mixer. This may mean that you have to purchase an audio interface. I have a Roland OctaCapture.

Each output goes on a separate track in my DAW. Using the DAW's mixer I can add effects to any track as well as adding busses. Much more convenient than using an external mixer, at least for me. YMMV


My wife had her driving test today.
She got 8 out of 10.
The other 2 jumped out of the way!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware