Went with the Sprout 100. It's very, very good, right out of the box. Definitely a bit brighter than the tube amp it replaced, but very clean, very clear, plenty of power (pushing Monitor Audio Bronze 2s). Nice wide soundstage. Tried phono, analog (driven by Schiit Modi Multibit), and optical (driven by Chromecast Audio). All sound really good. Was picking up some (probably) RF noise when it was set for the phono stage. On/off/bass knob is a bit quirky trying to get it to do what you want it to. Remote helps.
This is my first class D amplifier and it's very listenable.
This is my first class D amplifier and it's very listenable.