Hi folks, you will be able to run the CT10 pretty much like a streamer. This is what I do.
You can install Spotify, Apple Music and Tidal APKs on the CT10, check thread
here. I have all my music on my desktop and use Foobar - and use DLNA to stream onto CT10, you need a Upnp component on foobar. I also use the foobar android controller and am able to play remote playback via my shared music drive via phone. That is another component you can install. I also play youtube playlists using foobar which streams to the DAP.
Only thing that CT10 doesnt allow is the native Spotify connect. Meaning at home, on a chrome cast for example, everyone on the same wifi network could stream to the device which had a streamer that is spotify enabled. With a CT10, you are logged into spotify on the CT10, so only you can control remote playback on a different device running spotify with the same logins.
Let me know if this helps. And yes I use line out on CT10, set it to 2V - turn the volume knob - you will see a line out option at the top - not super intuitive. you can set the 1, 1.8 or 2V I think.
My chain is CT10, amazon 3.5 to RCA, PM6006, D225
Some other challenges:
- to run Spotify, you'll need to pick up the DAP and turn it on. But you can switch to DLNA content via foobar easily - not switch back to spotify

- Battery backup is not that great - so I kind of charge it too often/leave it plugged in mostly - but have been using it this way for 5 months now without issues. Used it sparingly before that.
- Wish it had an optical out so I could use the DAC in the amp - but the DAC in the CT10 is good as well since it comes from the AK family
Listening impressions:
- I pretty much only listen to carnatic and hindustani music. Some fusion stuff but some elements of indian classical has to be there.. this is 80% of the time and I run music through the day in the background. They sound great, mostly vocals and indian insturmentals.
- If I want to listen to music critically, I prefer the headphones via the 6006 headphone out running the CT10 itself. I listen to all genres otherwise and keep exploring new stuff in that sense. These are generally handpicked bandcamp albums that I pay these days for.
- A lot of my old FLAC collection is downloaded from some years ago and some of them sound great, which I keep going back to.. Favs being albums by RATM, king, clapton, Jerry Garcia and Allman brothers kind of things..