Hi Ertan,
You may find this Knowledge Base page about Roon Architecture helpful in understanding how Roon works.
As I understand it, your question might be rephrased as “must the audio signal go through the Core ?”. The answer to that question is yes. A Roon Core must always be in the signal path between file storage and output if you are playing music in Roon.
You can, however, separate the Control functions to a different computer/device than the computer running the Core. Some people run a RoonServer Core on their NAS, others (like me) use a dedicated server or NUC to run RoonServer and control it with a tablet or with a “remote” installation of Roon on another computer. This means you can turn different Control devices on or off without affecting playback.
You’ll find other users on this Forum happy to help with beginning questions about Roon. We all remember when we started out ! I’ve shifted your post into Roon Software where we have that kind of discussion, but if you find something not working properly for you we can alert Support and get assistance.
Edit: on rereading your post you might also be asking if you can send Roon via an Ethernet connection to your Network Player, Receiver or Amplifier. Roon supports the following network protocols:
RAAT - this stands for Roon Advanced Audio Transport and is a protocol developed by Roon. It connects a Roon Core to any Roon Ready or Roon Bridge device. Roon Ready is a RAAT receiver usually implemented in firmware on existing components. I don’t think any of your components are Roon Ready. You can check a list of Roon Ready hardware partners here..
The other way of using a RAAT network connection is to use a small computing device like a Raspberry Pi or similar or a proprietary equivalent such as SonicOrbitor SE and run Roon Bridge.
AirPlay - Roon will stream to an AirPlay capable device but playback is limited to resolutions supported by AirPlay;
Sonos - Similarly to AirPlay;
Roon also supports streaming to Meridian and Squeezebox network players.
Roon doesn’t support streaming via DLNA/uPnP but there is third party software from Sonore which can enable you to stream Roon via UPnP.