Considering A New Streaming DAC (Pick 1 of 4)

Depends on your goals obviously, but for my taste I’d go for either the Weiss or the Tambaqui in that system. At the risk of generalizing a bit re Pass and AN, for balance I’d want the most transparent and high res sources, to balance out the personality of the Pass/AN.

Tubed TD may be too much of a good thing in that specific system but YMMV (new TD comes with a return policy so try it if you’re really curious)

I have a Lumin X1 streamer with fibre. I would use the DAC's mentioned in the OPs choices with fibre converted to USB. I find it interesting that GTT (distributor of Mola Mola) used to demo the Tambaqui with an external streamer and not the built-in Ethernet streamer. 

My long sold KRELL K-300i integrated (a great unit) had a built-in Ethernet streamer and it was not as good as using fibre converted to USB.

The built-in Ethernet is convenient, but my 3rd choice after fibre, USB, and then Ethernet.

we sell a lit if dacs and streamers 

we sell bricasti naim Aavik Aqua hifi and 432evo servers 

please reach out to our office for a conversation about these devices

Dave and Troy

Audio intellect  nj

I’m running the Bricasti M3 as a one box solution with Roon and like it a lot. So I’m partial to Bricasti. I also use the XA30.8. Both the Bricasti and the Pass sound better when run with XLR cables. Just wanted to mention this to you. Your other choices might be fine single ended, don’t know.

Your other option if you only have digital as a source, is to ditch the preamp and run a better DAC, something like the Bricasti M21 direct into the XA30.8. The preamp in the Bricasti is excellent. Super low noise floor, transparent, dynamic.
Just a thought.

Agree with @audphile1 love my Bricasti M3 but if I could have afforded it I would have bought the Bricasti M21. Beautifully made in the USA and not solid state sounding nor tube sounding just musical sounding.