Dizzman's law is Dizzman's law, right?
Wow... i have a law now.
I guess (at the risk of having things taken to an extreme degree) i will add to my statements.
What i am saying is that while warm up is real, and things like speakers can wear in a bit, and subtle synergies can show themselves. And caps can do their thing, and the whole system can settle in a bit.
But we get back to the same argument that takes the cable and tweaks threads off the rails. While we are not saying that we can measure perception (we cannot) we have test equipment that is many many magnitudes more accurate (carefully chosen word there) than the human ear (a VERY inaccurate device)
So what i am saying is that again... IF you are hearing a sonic difference that is so dramatic as to proclaim "it sounded broken before, i cannot believe how much it has opened up..." then there is an increase in either level, or sonic reproduction.
The SIA software SMAART system can listen to the audio coming off a source, then listen to the audio in the room and compare the two. this allows an operator to make adjustments so as to most accurately reproduce the source. you can also use it to establish a delta in performance. so that you can then figure out where the issues are and make changes if desired or needed. This system (and many others) can measure to a level of accuracy that the human auditory system is not capable of. IF the system in question had a dramatic change over time, guess what. the system could be measured.
It is important to add that while this system is FAR more accurate than we are, it cannot for a moment tell us if the sound is GOOD... that is what we need humans for.
When talking about the differences between subtle and major... it is pretty simple.
A. "I am really enjoying my new system. Over time, it seems to have just tightened up a bit. not sure what it is, i just seem to like it more every day."
B. "Wow, over the last 8 days of running the system 24/7 with a test disc, it is like i have an entirely different sound."
how come with burn in it is always better? Since the sound so RADICALLY changes... isn't it logical that some folks might think that it got worse over burn in?