Hey everyone,
I fairly recently moved from Windows 10 to AV Linux for my pro audio work. I managed to get almost all of my plugins working via Wine+yabridge, and my DAW (Reaper) already had a native build for Linux anyway, so that was a fairly easy switch. Low latency stability has been great so far. My last hurdle is figuring out how to get an interface working well with high channel counts.

Upon plugging in my UFX +, I saw that Pipewire was only able to 'see' 12 inputs and 12 outputs, regardless of the settings I dialed into the UFX +. So, seeing that the UFX 3 supports far more input and output channels in CC mode, I have considered selling my UFX + and upgrading to the UFX 3. However, since it is a large purchase, before spending the money on the upgrade, I was hoping to verify a few things about using the UFX series in Linux in CC mode:

1. The UFX 3 would be plugged into a Ferrofish A32 via MADI, and an ADI 2 Pro FS R Black via AES. This gives me an additional 34 outputs, on top of the built-in 8 outputs. I mix mostly out-of-the-box, and my console is 36 channel plus 4 aux (and 2 for monitors), so I need at least 42 outputs, preferably at 96k. Needs for input channels is less- I only need about 24 inputs at most. At the moment, the UFX + is able to do this in Windows 10 without any trouble, but since I am not interested in staying with that OS, is the UFX 3 capable of this channel count in CC mode in Linux? In CC mode, I assume the MADI and AES-connected converters should still function properly, correct?

2. Seeing that "Headphone Mode" copies the output 1-2 to 9-10 and 11-12, this assumes outputs 1-2 are used as the primary master outs if one does an in-the-box mix. Is it possible to set a different pair of channels as the primary monitor out in CC mode?

3. I assume push-to-talk talkback functionality would not work in CC mode, but this could likely be 'faked' by simply creating another configuration which monitors the talkback mic to the headphone outputs, and swapping in and out of that configuration, correct?

4. Does anyone know if the converters in the UFX 3 are the same as the ADI 2 Pro FS R Black? Currently, my monitors are plugged directly into my ADI 2, that way I can use my best converters for monitoring, but if the UFX 3's converters are so close in sound to the ADI 2 Pro FS R Black, then it may be easier for me to set channels 1-2 as monitors, channels 3-38 as the console, and so on. Reaper allows for rearranging and renaming of outputs and inputs, so I'm not too particular about what numbers are assigned to what task.

5. Lastly, I am using the "Cables" flatpak app for routing signal around. It works well, but is a tad rudimentary. I have seen that one exists for the UCX II (https://github.com/michaelforney/oscmix), but does anyone know of such a thing which can also work with the UFX 3?

Thanks for the help everyone.