@wharfy ,
Actually I heard changes within a few hours. This was probably due to warming up as it came straight out of the cold shipping box. Recognized further evolving improvement after several days (Increasing openness and at the same time more relaxation).
In my opinion I don’t believe that it needs a ton of hours for break-in, 50-60 hours for me. I was certain the Pro-Ject would bring out the best in your Musetec 005 DAC.
I’m still very pleasantly impressed by the big sound presentation and dynamics it provides with a wall wart power supply. It has larger scale, musical pace and tonality than my PWT(Where these qualities were strengths) with internal linear power supply.
Charles