Thank you Andrew for the suggestion. But I already have achieved great sound and video via my current setup, with HDMI output from HTPC/server to my monitor.
(JRiver) Windows 10 optimized (HDPlex 100W LPS)(HDPLEX Hi-Fi 250W DC-ATX) => PPA V2 USB (LPS-1) =>(USB Adapter) Intona =>(Supra USB No 5V No shield) Regen(LPS-1) =>(USB Adapter no 5V) Chord Hugo =>(Nordost White Lightning) Outlaw Mono block 2200 =>(Nordost White Lightning) Magnepan Mini
An AV receiver would be a backward solution from my current setup in which I'm striving to achieve the best sound quality possible while maintaining the ability for good video. Although I could make this change for audio only, I would rather not and keep the same solo DAC connection with video also. This is why I stay with JRiver for it's video playback in combination with bit perfect audio playback and it's great library features. There are many other media players for audio only.
Here would be my new audio system, keeping HDMI to my monitor for video from the server/HTPC.
(JRiver) Windows 10 optimized (HDPlex 100W LPS)(HDPLEX Hi-Fi 250W DC-ATX) =>Ethernet mRendu(LPS-1) =>(USB Adapter no 5V) Chord Hugo =>(Nordost White Lightning) Outlaw Mono block 2200 =>(Nordost White Lightning) Magnepan Mini
The HTPC/server would communicate via Ethernet/wireless (separate bridged NIC) with router to my mRendu renderer.
Just thought I would check to see if there was a solution I was unaware of for adding the audio only renderer (mRendu) and maintaining video playback in server, JRiver?