For Your Edification and Enjoyment re "Burn In", etc.

random thoughts reading the funny exchanges in this thread...

mc & audition audio -- pots calling kettle black... 🤣

doug writes here and elsewhere as his contribution... his beliefs his findings - yes he talks down to people, everybody gets irritated and gets short and rude, sometimes hard to avoid - lotta anonymous keyboard jockeying happens here from people who have shown less in experience and 'who are you' qualifications than doug

frank v a's abx unit is indeed a truth teller

bottom line, if you are curious enough about anything hifi - gotta find out by yourself, be rigorous with the methodology

which of course, has not been demonstrated, but has been shown not to occur via my informal testing, they will get much more of nothing done.

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Douglas the point I was trying to make, is you have a view that is based on minutes, not hours, days, Weeks and MONTHS .. Do you understand? You said hundreds (100s) of systems. With minutes each.. That is NOT critical listening.. That is passive at best "a quickie".. PLAIN and SIMPLE..

Taking the time on just ONE complete system 1-400 hours. That is why manufactures have help lines..  You summed up your "DATA" in a nutshell, "more of nothing done".

The race is a mile long you quit at 50 yards pretty tough to say how you trained for a mile, but stopped at 50 yards..AND go on to tell others how hard that mile really is.

You can't talk about braking in something if you don't actually do it. 
Let alone assign 100s to the same analogy, it's just not good data.
You literally haven't done your homework...

You want that grade NOW? :-)

Respect..

No the abx is not a truth teller. Check out all of the possible problems most if not all of them arise from the psychological phenomena of being tested. You either allow for any number of subconscious psychological influences on both sides or you dont get any. 

Doug,

I once had a pretty good ear. I have been a practicing audioguy for many decades now. In all my years I have only had two occasions where break-in and warm-up was audible to me. One was a pair of Klipsch loudspeakers that on startup were near reference sounding loudspeakers and 24 hours later they had declined to just decent sounding loudspeakers. The other was a tube amp that needed 20 minutes to get to top performance. 
Changes in cables, powercords, and other gear over time have not shown themselves to me. On the otherhand I seldom argue with what others have experienced, it's possible that they have had a different experience than me. I can't say with certainty what they have experienced, I can only trust what I have experienced. 
Good articles, though.