German magazine i-fidelity.net have published their 4-page review of LUMIN U1 MINI.
During the review André Schwerdt states:
The Lumin U1 Mini offers a very well thought-out, comprehensive, top-class streaming performance at a very reasonable price.
...gives the notoriously doubting audiophile music listener the certainty that they have done everything right at the beginning of the signal chain.
If a first-class streamer like the Lumin U1 Mini delivers the data in such a maximum trouble-free and excellently prepared top quality, the DAC can run to top form. And you can hear that every second.