You, and everyone who thinks they hear equipment breaking in, need to read my articles about this topic at Dagogo.com;
Audiophile Law: Thou Shalt Not Overemphasize Burn In
and
Audiophile Law: Burn In Text Redux
The community needs to gain some perspective on how much of a range of perception humans have from day to day while listening. It's complete nonsense to think that we are more consistent than electronics, or that we can definitively assess changes to systems over days, weeks, etc. A great deal more humility/experience is needed in the audiophile community.
I read, admittedly skimmed, your first article. It's a good article, but just one test of one class D amplifier. It could be that these are less prone to showing change with use. I am not doubting your conclusions, but it is a small data set.
The purpose of my post was to add my perspective to the conversation and report in the most objective way my personal results. This is what I heard, and I worked hard to keep all the other variables the same. My conclusion is that there is a break-in period needed for this amplifier. Is it measurable and does it make sense at an engineering level, probably not, but nonetheless my humble opinion is that the need exists.
