DEVIALET now Roon Ready.

[Music or sound]

I wonder what would be the difference in using a Zenith as a core vs Devialet (Zenith as a player) both functionally and sound wise?

@David A was quicker than me!

Your Zenith should work well as Roon Core as long as you avoid heavy Roon DSP use (upconverting PCM to DSD for example). EQ and/or convolution will probably work fine too. Did you test any of this during the Roon trial?
The Devialet amp can not run Roon Core. It is either a RAAT endpoint (if the CI board is installed) or an AIR endpoint over ethernet - or it is a USB device. The Zenith can also be a Roon Bridge, but then you must run Roon Core somewhere else and connect the Zenith and Devialet with USB. The fact that the Devialet is a Roon endpoint in it self sort of defeats the Zenith Roon Bridge in your setting, unless you prefer the sound of the USB connection of course.

Thanks finally Roon replied but your explanation is clearer. I found that AIR ethernet sounded the best and USB the least of the 3 options. I tried some EQ for my speakers. Roon has a quite well designed EQ with different filter types and slopes and an excellent UI. It required upsampling, DSP and downsampling but without EQ the path is much simpler. I needed only slight notch filter and a 3dB boost in highs. Without EQ is sounded clearly better. I wonder if that would be also true for music servers with larger computing power?
Would be nice if Devialet would implement an EQ function of similar versatility in their configurator  (or even better in their promised App) without the need of of back-conversion (just before the DAC)