I’m willing to go up in price. My wife has tolerated my audio habit long enough and I don’t listen critically nearly as much as I use to, so going down in size is no problem for me. The Sony has intrigued me for a while. I don’t remember if it has a DAC or not.The Sony sounds about identical to the Halo. I've owned both and compared them back to back. The big difference is that the Sony pretty much petered out once my 88db sensitivity speakers approached 90db.
The strength of the Sony is its performance at low volume levels. That and it's a better value proposition when only SQ is considered.
I would think the Naim Supernait2 would be a better choice than the Unti Nova - where SQ is concerned. A lot of the Nova's price comes from the steaming/network/DAC hardware.
If your system is mostly for background music, might as well save your money and get Sonos.
If you really want to hear what 2-channel music at its best, get a tube amp. Owning one should be on every audiophile's bucket list.