to 1) yes
See manual page 16, use "split" mode, then you have 32ch for MADI via optical and 32ch for MADI via coax.
to 2) in TM FX you control the levels for your submixes for MADI inputs and MADI outputs like for every other MADI device. You select an output and then select the levels for HW inputs and SW playback channels. For a converter there is usually not much more to do besides to select the proper reference level which you usually do one time, if the devices do not change much in the studio which is quite usual.
You can control the device via display or you can remote control it comfortably via WEB browser, for that purpose you connect the device to your network. An alternative to that might be to use RNDIS (over USB) if this is implemented like with 12Mic.
For Mic Preamps like the Octamic XTC it was possible to remote control the device in two ways (one OR the other)
- MIDI Remote
But this AUXDEVICE integration into TotalMix FX has only been offered at that time (for devices without browser management possibility over IP) because with a Preamp you have more to control like e.g.: Preamp Gain, 48V, PAD, Autoset.
Compared to that you have to control much less on a pure AD/DA converter. Usually only the reference level. So TM FX AUXDEVICE support will most likely also not be in scope for this AD/DA converter.
So its more likely that you will control this unit
a) either on the unit itself by using the display or
b) that you can control the unit via Webbrowser, for this purpose you need to connect the M-1610 pro to your network.
to 3) AFAIK .. for windows you will need an AVB capable recording interface like the Digiface AVB to build up an AVB based setup. When purchasing the M-1610 Pro, then you have the choice to
- use the device in a MADI context like you will do now together with your UFX+ and your SPL
- use it later in an AVB context and
- additionally to connect your old MADI equipment to the M-1610 Pro to its MADI port to make your MADI equipment again useable in an AVB network.
X10SRi-F, E5-1650v4, Win10 Pro 2004, Cubase 10.5.20, UFX+, XTC, ADI-2 Pro FS R BE, ARC USB