Changes in DAC Presentation - Need Advice


Hey all, I recently purchased a Denafrips Terminator II, and ever since I've noticed that some days the sound is sweet and natural, and other days it is forward and bright. I've even heard the sound change mid-song. Could this be due to fluctuations in my line voltage? Any other reason this may be happening?

System:

Mac Mini running Roon core

Sonore ultraRenu

Denafrips Terminator II

Pass XP-12 Preamp

Odyssey Audio Kismet Monoblocks

Focal Sopra 2

128x128topside3

Showing 8 responses by topside3

@verdantaudio, my system is on 24/7 so I can't imagine there is much warming up as I listen. Regarding the Mac mini, nothing else is running on it except for Roon, but I'll definitely do some research on this. Thanks! 

@ghdprentice , the Mac mini is only running Roon Core. I’m using a Sonore ultraRendu for the streamer.

@audioman58 I've had it about 5 weeks. I left in on for 10 days straight as recommended by Denafrips, bit have since put it in standby. I'll try leaving it on for several more weeks. Not using any line conditioning. USB cable is Wireworld Platinum 8.

@yyzsantabarbara ​​​​, if I'm only using the Mac for the core with no playback issues, wouldn't the separate streamer remove any of the sound quality issues? 

@sbank I replaced the ultraRendu with an opticalRendu and things have been pretty stable. Perhaps network noise was the culprit. Definitely now looking at replacing the Mac mini. 

@sns do you mean you upgraded to the opticalModule from the TPlink? I’m definitely doing that once they are back in stock.

That’s good to know about the Mac Mini. Perhaps I should investigate my network first. My main issue now is Roon/HQPlayer has audio drop outs every now and then where audio will stop and come back 3-4 seconds later. I was thinking it was the Mac, but maybe its network related. The mac only sits around 30% CPU usage when playing. Right now I’m set up modem>Google Wifi>unmanaged TPlink switch>TPLink Powerline adapter>FMC>rendu. Would a MANAGED switch make a difference? Can you give bandwidth preference to certain devices?

What do you mean by using thunderbolt ethernet out? Ethernet in and thunderbolt out? Or just use thunderbolt instead of the standard ethernet port?