ive had mine for perhaps 5 months now. I would say there is a break in period. I also found it superb out of the box, and yet noticed small changes within a week or two. For instance, straight out of the bid I had one preferred filter setting but a few weeks later I settled on a different setting. But the difference was truly minor.
Bricasti M1 internal temperature
What's the correct working internal temperature range for the Bricasti M1 DAC? Nothing about this in the user's manual...