I agree with MarioD on this one. I run 5 "hard" snyths and lots of "soft" synths. All of the "hard" synths feed into a MOTU Midi Express. From my controller keyboard, I can access each "hard" synth and all of my "soft" synths through my DAW tracks with no wiring changes just by assigning each track to a synth. All audio feeds into my MOTU 828 MK3. No external mixer needed.

Jeff


Win11, Intel i7 7700K 4.2Ghz, 32Gb RAM, 2x1Tb HD, 500Gb NVMe, BIAB/RB 2025, MOTU 828MK3 audio, MOTU Midi Express, Yamaha Montage 7, DX7II, TX802, Motif XS Rack, Roland Fantom XR Rack, Oberheim Matrix 1000, VoiceLive3 Extreme, Kontakt 6, SampleTank 4.3