I saw the link to the Bacch site on how you can figure this thing.
Basically it's a desktop computer connected to one of their devices connected to speakers that presumably are powered.
So I guess you don't need to use a streamer/dac and a pre amplifier.
So basically looks like you're replacing most of your existing system to get this thing. And then you have to install a WebCam on top of your computer which I think is weird.
They need to show some practical examples and not just pretty pictures still lots of confusion in my opinion.