Break In Question?

I was never a big believer in break in until a few years ago when I bought a new pair of mono block amps.

After about 15 minutes of listening, I wanted to pack them up and send them back to the hell from whence they came. Lots of blare and glare and honk. Very unpleasant. Very fatiguing in spite of having a treated room. My old cheaper stereo amp sounded far better (and it was not a good amp).

But I had a trial period so I let them play on. I would periodically check to hear if there was any improvement. Each time I checked, I did perceive some progress. After about a week the transformation was astounding. They changed from blare and glare to smooth and balanced and liquid flowing. I had never heard my maggies sound so fluid and open. 

This wasn’t a case of just my brain “getting used” to them because I didn’t sit down for listening sessions long enough to get used to them during this period. I kept these amps and don’t plan to replace them anytime soon.

My logical self tries to tell me electronic break in isn’t possible…but I know what I heard and I know that I didn’t imagine it.

He still won't answer my question about headphone break-in after non-continuous listening with no 'getting used to' involved. 

All this talk about “break in” has made me think of something that l have never even considered before.

There has been some debate that equipment with moving parts benefit the greatest. Speakers leading the field because of their mechanical drivers.

So what has suddenly dawned on me is……. 
Do tonearms need a “break in” ??

l personally have never heard a difference other than with an immediate change of model. Is there anyone who thinks that a tonearm improves from being broken in, just like a car engine?

Burn in and consistency depends on the sum of inductors in the design and to somewhat the pcb track design.

The more expensive the design the more these things are likely.

The times involved long span are 9 months 3 weeks or 11 months 13 days for full tuning.

Computers are the worst.

@douglas_schroeder What is your position on amplifiers sound, especially class A that's freshly turned on vs 2 hr of warmup?