Let me say that I have a TEAC UD-503 headphone/pre-amp, DAC which is capable of being used in a full blown system and it's very good soundwise and very well built and I would recommend it and it's later models to anyone looking for a reasonably priced good quality one box solution.
Enter Aurender the UD-701 competes directly with the A10 and A100 servers/streamers.
What I suggest and will always suggest, go and audition these servers because they really are great performers and will hold their price better in the used market than TEAC.
Enter the Musetec 005. I know there's been a lot of talk on this forum about the 005 but that's because it's a watershed product. The product that made Chinese HIFI come of age. Most of the parts it uses if not all major items are imported. Mundorf capacitors from Germany, Amanero USB board from Italy, chips and oscillators from the US and I believe the transformer is from the UK. Point to point wiring.
You owe it to yourself to hear this DAC.
There is a US distributor and Aurender plays MQA but not ROON.