UAPP has Tidal built into it but I have not used that. I have not tried the offline feature yet in any of my Tidal devices.
I tested both and mention it because the early unit had a marked difference in sound quality between using Tidal (streaming) and UAPP (internal music), some think it is due tot he WiFi??
I did not hear the electronic squeaking with UAPP (WiFi on), I only heard it occasionally with Tidal (streaming WiFi obviously on).
I just did another test that wont make many happy. the original unit has better WiFi reception and Bluetooth range is better, (passes the test I mentioned above).
Bluetooth did glitch at about 30 feet and four walls away but it made it (only one glitch/skip but still playing).
Next I may try downgrading the Tidal on the new unit and upgrading the Tidal on the old one and see what happens. Could be all the crap Tidal is pushing in the background that is causing the new one to be so slow?? Not counting on it.
But first its time for a motorcycle ride to get some fresh air.