@jasbirnandra The folks from Vinshine mentioned that it would take 100-300 hours to break-in. I was pretty disturbed by the brittle sound - even to the point of considering switching back to the original components. But I am happy now. I think it was a combination of break in time, but also the firmware update.
LHY Power Supply for Node and Pontus II Firmware
My LHY Linear Power Supply upgrade from Beatechnik for the Node N130 introduced a brittle, technical sound (maybe what folks call "etchy"). I've heard this before with products that need some time to break-in, but this seemed worse.
Ten days after the LHY upgrade, I successfully updated the firmware on my Pontus II and the harshness was gone. I was amazed at the improvement.
I wrote Vinshine to share my experience. They confirmed that others had also experienced some initial harshness with the LHY upgrade, and it would take 100-300 hours of a break-in period.
I will admit that the harshness may have begun to diminish before the firmware update; however, the firmware update made an immediate and very noticeable improvement in my case.
This isn't a question. I simply wanted to document and share my experience for those who have similar equipment.