I’ve been using an Emotiva setup for 3 years and love it. I have a setup close to the initial system that someone else above started with. It’s their XSP-1 stereo pre-amp and the 2nd gen XPA-2 amplifier. Nothing but love for it. FWIW, which probably isn’t much for the internet, a couple buddies and I did a bunch of component head to head listening events. All blind taste testing for ears. When we did the pre-amps, several people picked my XSP-1 as their favorite, most picked a Spectral as the winner. We demoed like 11 pre-amps that people had in their houses either in active use or storage. The XPA-2 amp was similar. Power in spades though compared to some of the smaller high end stuff that people brought to the get together.
I have the Sherbourn PA-50 which is pretty much they same as the small Emotiva amp you’re looking at. It’s a nice little amp that’ll power most any smaller bookshelf. For its footprint it’s hard to beat.