So after a few hours the last couple of nights I am now more up to date on this topic.
I am more interested in finding a way to use the IS2 input than another USB.
I have narrowed down some options. Most of you may be completely aware of these but I thought I might at least wrap up this thread with some suggestions instead of just questions.
Bridge II (No DSD support) I don’t know if that matters with the DirectStream. Looks like a great option though…
Pink Faun IS2 bridge (No DSD support) I might add it to my PC server anyway.
Audiobyte Hydra Z and Hydra ZPM (This is probably my selection unless I am told why not.) I like the ability to try all kinds of outputs from one unit. Plus DSD and DXD support is offered.
There are some Pi options out there but that is over my head in computer and electrical knowledge. I am not sure that DSD is an option either.
I might just add them all and enjoy the different options. Though none of it is cheap, well maybe the Pi options are. But none of it is that expensive relative to the other items in the audio mix.