Have you guys ever experienced any static noise with NOS mode?
My unit is Terminator Plus and I use it with the Hermes DDC. The TP is always in NOS mode, and both DAC + DDC have been left on the whole time (as suggested by Alvin). When I did not listen to it, I just put it in standby mode.
From time to time, I heard static noise along with music (faint and not intrusive) in NOS mode when music was played. If I switched back to OS mode, the noise was gone (and came back when I toggled the NOS back in).
I tried to isolate/identify the issue, and these are my findings:
- It's the DAC that caused this problem. I tried removing the DDC and the problem persisted.
- This happens once every 2-3 days from the last power cycle.
- Mostly happened in NOS mode.
- This noise can be fixed by power cycling the DAC. After I killed the power and plugged it back on, the unit worked perfectly with both NOS and OS modes.
- Now the DAC is with firmware 3.06 will try 3.12 today, but I really doubt this will help as this firmware deals with USB issue, but my unit operates via I2S.
Anyone has this same issue? If so, which model do you use?
----------------------
EDIT 12-01-22
I found out after posting that this issue IS NOT LIMITED TO ONLY NOS mode, but also affect DSD mode. Below is the short snap I took illustrating the problem. My setup is headphones setup, so it might be a bit difficult to hear the static/crack/pop, but if you turn up your volume a bit, I'm sure you can detect it.