...it seems reasonable (to me) the most highly optimized, tightly integrated audio ecosystem stands to be all Taiko: router//switch//network card/Extreme. Controlling the signal path like that you can get what you want -and- what you need.
That said, I think the question many in the community will have is regarding the complete chain vs. just switch, just NIC, etc.
It's not possible to test every permutation/brand available, but if there are characteristics or technical requirements that are required for great performance with a mix of components, or to best integrate with new Taiko products, that might be helpful to know. I suspect some of that data may actually be generated by the diversity of the community itself. Can't wait!