I have the Volumio Rivo+. I use a separate 5 volt 3.5 amp linear power supply with it. For some reason, you cannot buy the Volumio LineO5 LPS in the USA. I am using the USB interface, and the sound quality is absolutely outstanding. You can also put your PCM or DSD files on a microSD card or USB and play your music files. I use a 1TB microSD card and it is super fast. You can use the streamer service providers user interface - like Qobuz, Tital, etc..., or the Volumio interface. The Volumio interface will publish information about the song and artist on any IPAD connected wirelessly. So, that is pretty cool. Of course, the Volumio interface is the only way to play your personal music files. The Volumio software gets periodic updates every quarter or so. There are some bugs that get fixed with the newer versions. This latest version is working very well. In Volumio, there are two ways to show your playlist from -- let’s say Qobuz. If your playlist is around 1000 songs or more, the more detailed version to show your playlist is a little slow at first, the other simple list is fast. It also depends on the how "new" your IPhone and IPAD are. I have an ancient IPAD that is slow with Volumio, so, I just use it for display on the bar for people to see the song and other info. I have an IPhone 12 that is fast with Volumio. I owned the Rivo+ for about a year now, and I am glad I bought it. On my stereo rack, I also have a 13.5 inch OLED screen I use with it. Here is a pic.
