I have owned The Atom for a couple of years now and it’s a great piece of kit for the money. I’m sure you will dig it.
I’ve paired mine with a pair of Bowers & Wilkins 705s2, NAC A5 & a recommended B&W DB4-Sub.
Originally I think I would have got some small floorstanders, but a small crazy claw happy kitten put that nice thought out the window. Hence my stand mounts & a sub for compensation! It all sounds amazing anyway so no real hardship. Just a heads up that I use it a lot with my Apple TV for movies and only use AirPlay not optical. I find for me, I prefer the integration and on screen display on my iphone (Naim App) . Also I switched from Tidal to Qobuz immediately it was price dropped. I found Tidal Hifi a little harsh on my ears. A little bright. Now with up to 192khz playback integration on Qobuz. The Atom shines! Enjoy yours. 
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