PS audio ultralink II dac distortion


Hello All,

   I have a PS audio ultralink II dac that has suddenly low volume and distortion from both channels. I hooked up another dac and no problems. So I am sure it is the ultralink. Anyone know what it could possibly be? What I should I have it check for? Any advice would be greatly appreciated.  Thanks   
harnellt
Thank you for your response. I did call them and they stated they did not service these dac because they were made at a time when PS audio was sold and owned by someone else. So they could not really help with this because they have not designed or build this PS audio line. 
I have a PS Audio DAC III Digital Link,
it sounded great when I purchased it 2012 now it’s
sounds Too bright with all formats coax SPDIF,USB,and Toslink.
a new DAC coming soon Wyred 4 Sound 2v2.
@cincyjim  
 
I would be weary of stuff made by Wyred 4 Sound, their Remedy reclocker for instance does absolutely nothing to the signal. 
@mzkmxcv 

i had other DACs in mind
what do you recommend?
i use a Sony ESD707 CDP and
Mac Book Pro and Apple airplay
@cincyjim

Also, while you may or not be a spec man, for the cost for >$2000 I’m disappointed by its THD+Noise rating of <0.002%, whereas the $9 Apple USB-C dongle DAC is <0.0012%, the RME ADI-2 DAC is <0.0005%, and the Oppo 205’s DAC is <0.00019%.

The Chord Qutest or Benchmark DAC3 are worth checking out.