Changes in DAC Presentation - Need Advice

I have a T2 + upsampled  you didn’t mention how long you have had it 

it takes over 600 hours to fully stabilize with these  OX over clocks ,one reviewer in Europe documented this , you are supposed to not shut it off ,

or putin stand by , you should have a dedicated 20 amp line if possible .

Are you in the u.s ?  If so look up my user name and send me a message 8 can fill you in ,and you can tell me what you have or din5 have 

what kind of line conditioning, and usb cable ,if using a computer buy the Iris, or Hermes reclocker ,then you can run it direct the best I2S

From your description, my first guess woukd be breakin. A number of components I have owned have gone through flip flops in sound quality between 100 and 200 hours of use.

The second, and perhaps more likely is your Mac. I assume it is your streamer… PCs are not good streamers. They are noisy sources. There are dozens or more of background processes and other stuff going on. If it continues, I would recommend a good dedicated streamer of comparable or better value.

@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.

Did you just leave it on or play music through it for 10 days? I made the same mistake. I left it on but had no signal running through it. Sound was all over the place.

Ran it in for two weeks and things stabilized much better.