I think Amir for another incisive review.
I recently purchased a WiiM Ultra mostly to see what the stream craze is all about. In my case it was a disappointment, not with the sound quality but the music management functionality of the component and, especially, the WiiM Home app.
As for the sound, I tried two connection routes, both using access via Ethernet to my NAS-based music files
- Coax to my Topping D90 DAC and hence my preamp;
- RCA, i.e. utilizing the Ultra's built-in DAC, direct to my preamp.
The sound was quite satisfactory either way. The first method, however, does provided a differential output to my preamp which does not itself convert single-end signal to differential.
I qualify my functionality assessment with the fact that I
do not use Roon
nor a streaming service, nor do I intend to do so. I might have a use for the internet radio access that the Ultra can provide, but I must note that my favorite internet music is from
CBC Music Playlists and, as far as I can see, this is inaccessible
via the Ultra. What I
do use is access to my NAS-based music files as implied.
As a mainly Classic music listener,
a highly flexible music library browse capability is essential. Just like any streaming service I have tried from time to time, the WiiM Home app is very deficient for browsing a Classical music library. With WiiM Home one is limited to a fixed, rather restricted range of options. These happen to exclude 'Composer' which is essential to all Classic listeners I would say.
My preexisting tool for accessing my music was and is Foobar2000 running on a dedicated Windows computer. This player has the HUGE advantage of user-definable browse criteria. Thus I can define, for example, browse by Genre/Composer/Album, (my favorite), or Composer/Genre/Album or Artist/Composer/Album,
etc., etc. The capability is absent from WiiM Home.
Unfortunately, for me, my conclusion is that the WiiM Ultra is a waste of money. Better for me or people with like requirements would be a (dedicated or otherwise), Windows computer. Cheap computers suitable for running Foobar2000, MediaMonkey, or the like, are available for US$ 200, cheaper than the Wiim Ultra and more functional.