@amirm Just to confirm, was the 50 mV SNR test done with the IEM port and not the 1/4-inch output? It's mostly academic, but the IEM output should have lower noise than what the AP can measure.
I don't know about you, but to me there is a huge difference between 1.3 million and 65000 deaths (factor 20 less). As to why it matters it's difficult to discuss without getting political.
If I remember corrctly I experienced something similar with my ADI-2 DAC connected to the balanced inputs of my THX 789. When the amp was on and the DAC was off (red ring) I could hear a buzz, but as soon as I turned on the DAC it disappeared. Not sure why it happened, but it wasn't an issue...
It's been a while since I watched the video and don't have time to watch it again right now, but IIRC the guy, who worked for AP at the time (and is a member here but forgot his username), mostly talked about specs that are not properly stated are pretty much meaningless, like if an amp is...