The mystery deepens.  I don't think it's Roon.  It may be SOSE.  I believe the microRendu is a much higher quality piece of hardware.  Anyway, I'm getting very results using AQ Dragonfly 1.2. 

  That's right, I do have a Regen in between, so it's not the power.  I previously used a laptop with Fidelizer and JPLAY Streamer, plus the Regen, GO450 DAC, etc. and it worked flawlessly.  So, I'm really puzzled by the pops.  If you run a test with the GO1000 and GO100 and have no problems it...

I've read somewhere (I believe the Computer Audiophile forum) that the microRendu (and, by extension, the SOSE) have trouble working with certain DACs.  And suggesting that some DACs have trouble altogether with Linux.  I can testify to the fact that when I connected the SOSE to LHLabs...

Actually, you're right.  I'm using the 5vdc with the SOSE.  When I get the microRendu, I'll probably get a 7v linear PSU.  MicroRendu seems to respond well to high quality PSUs as I've learnt. 

What sort of linear PSU are you planning to use?  I've got the iFI 5vdc, not linear but sounds fine to me.

Thanks for starting a thread on the microRendu.  Out of curiosity, what DAC/s did you use with microRendu?     I have the Sonicorbiter SE, not as high-end as the microRendu.  I believe they both use the same software though. SOSE was easy to set up and works flawlessly.  The Sonicorbiter SE...