The reason I'm asking is that, although squeezebox works well for me, it hasn't been supported by Logitech for a long time, and that means that it isn't able to respond to changes in music streamers' formats. Spotify's OK. I rejected qobuz because the squeezebox app wasn't finding all the files available for streaming, and the youtube and soundcloud apps are a total failiour.
Let me check with you if you have the time. Does this Soundshift:
Stream your own server of lossless and lossy files? Is there a maximum server size?
Stream quobuz, soundcloud and youtube?
Allow you to search on your tablet?
Allow you to use an external DAC? (I know you're happy with the sound but . . . )
While I can't give a definite yes to all your questions I can give a qualified one given that I know how the system works.
The Kaiser Baas Soundshift is a wireless receiver that operates via your homes wireless network. If you don't have a wireless network it can also act as a wireless hotspot. It will pick up wireless streams from Apple devices via the already installed AirPlay available on iDevices (iPad, iPhone, etc) and Macs. For PCs and tablets it uses DLNA to connect wirelessly. I've used both so I know it works. In other words it is controlled by the apps on your device so I think that's a Yes to all four questions (assuming your server runs and is controlled by a PC and/or a software media player)
Via my iPad I've streamed YouTube, Spotify, my music library to my Hifi setup, basically anything that produces sound on my device. The sound quality is very good. I used the work tablet to play my sound library via WMPlayer. I also have JRiver which would also work. I haven't got around to streaming from my PC yet as I don't need to. The range is quoted as 30m.
The Soundshift is a small cube that fits easily into the palm of my hand. It is powered from the wall via a 5v mini USB and connects to my amp via RCA leads. It was given to me as a thank you gift and has to be one of the best gifts I've had. From what I can gather it costs about $US100.
Logitech make a similar device but it uses Bluetooth to connect and sometimes pairing can be an issue with Bluetooth. I imagine that there are other devices as well.
The only issue I had was the initial set up connecting it to my home network. There was one instruction missing in the manual. A quick call to the help desk solved the problem.
Hope this helps.