I use a UFX+ and TotalMixFX to send output to 8 channels in a home hifi system. I would like to add 2 more analog outputs.

I also have an ADI-2 Pro FS BE. In the current setup, it serves as a USB - SPDIF converter and headphone amp. It is not connected by USB to Totalmix.

The UFX+ is clock master because I need to use the mic input on the UFX+ for clock signals in digital room correction  software.

Questions
1) Is it an option to use the ADI-2 pro AN1+2 outputs if I reconfigure to use the USB on the ADI-2 so that it shows up in TMFX? I assume that the AN1+2 outputs would be clock slave to the UFX+, as the headphone 3/4 outputs are now

2) What other options are there for 2 more analog outputs?

CURRENT SETUP

Desktop                                               Hifi Corner

miniPC
(Daphile as network streamer)
   |   
USB3
   |
ADI-2 --------- Opt SPDIF out -------- UFX+ opt2 (AES) in
    |     --------- Opt SPDIF in --------- UFX+ opt2 (AES) out
    |                                                                  |  |
Headphones                                             USB3 (out/in)
   AN3/4                                                        |  |
                                                                Windows PC       
                                                                (Audio convolver for digital room correction)

The Daphile digital audio USB output is converted to SPDIF by the ADI-2 and sent by optical SPDIF to the UFX+. The UFX+ returns digital audio by optical SPDIF to the ADI-2 for headphone listening post-processing.

Clock Source is set to UFX+ so that the measurement mic ADC and speaker DAC clock are the same. This is necessary for digital signal processing in the Windows PC by Acourate (Audiovero.de).

UFX+ Analog outputs are
1+2 Subwoofers
2+4 Woofers
5+6  Mid-frequency
7+8  Tweeters