Bricasti M1 internal temperature

My unit has been on for 5 days straight and reads 91 currently.
Yes it sits in the open with good air flow.

Ours has been on for past two days running in some new Purist Audio Design cables. Reads 100 degrees currently. Well ventilated and nothing above it.

Mine reads 103. I just received this dac a week ago and it sounds fantastic right out of the box. Is there a break in period and what do you notice when fully broken in.

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.