Lumin X1 with Innuous Zenith Mk3 Question

@nekoaudio 
Thanks for your response.  Very helpful 

I just realized that my question is basically moot after learning that the X1 does not include any digital inputs.  I wrongly assumed that it had full DAC features but now realize that it's designed primarily as a streaming device.  That's too bad as I will need to cross it off my list.  I need to at least have an input to run my CD player through.  

The X1 is a combined streamer plus DAC. If you want just a streamer then the Lumin U1 might be worth a look...

Your ZENith MK3 does the following in your configuration:

1 - Server (runs Roon Core)
2 - Streamer (I am guessing USB out to your DAC? What is your current DAC?)
3 - CD Ripper
4 - Storage for your music (Solid State Drive - SSD for short)

If you get a DAC with a streamer built in, which is nothing more than a network card built into the DAC, then you need something else for #1, #3, and #4. I am guessing among those three, the #1 is the most important part. You would need a machine to run Roon Core, something like what @nekoaudio mentioned (Nucleus, NUC, sonicTransporter, or even a general purpose computer). Whether that machine is as good as the Innuos as a server, it is up to you to decide.

IMO, since you already have a ZENith MK3, getting a good DAC with a nice USB input would work just as well. Basically, replace your current DAC with a better DAC with USB input.

I'm actually searching for a DAC upgrade, not a server upgrade.  I mistakenly thought the X1 was a full featured DAC with streamer capabilities built in, but now I realize that it's a streamer first with an excellent DAC built-in.  I'm moving on to other options that are DAC based.  Thanks!