Hi @rychapleski,
This is indeed possible!
It would be easiest to think about as a connection of two systems, one being an SQ + Dante option card + DT expander and the other being just the Qu.
As the Qu cannot clock to an external source, you would need to clock the SQ to the Qu, the Dante option card to the SQ and DT expander to the card. The SQ system would still run all audio at 96kHz though 🙂
Using Tie Lines on the SQ would allow signals to be passed between the Qu and DT expander, but it’s worth noting that the Qu would have no idea what expander is being used. This means all preamp control would be on the SQ, with trim on the Qu.
If you’re not using Dante for other reasons btw – you could also use an SLink card in the SQ paired with any DX/GX expander (all 96kHz).
Hope this helps!
Cheers,
Keith.