Component Break In. Truth or Fantasy


I just recently got a second pair of planar headphones and the manual suggests a break in period of 150 hours. I find the topic of component break interesting in that, like so many things today, opinions are polarized with some audiophiles claiming break in having significant effects while other maintaining it is all BS and it's just you getting used to the new sound of your component.

My experiences has been that break in has a significant effect on components that convert one form of energy into another, and that have a mechanical aspect to them.

It makes sense that new speakers, as a result of excursions when being played, will loosen up and that will affect the sound. Same goes for phono cartridge suspensions. It's not unlike our own bodies where stiffness reduces and movement range extends when we work out, move, or stretch.

However, I have not found significant break in effects with all electronic components like DACs and Solid State Amps. And as for cables, not at all.

What has been your experience?

alvinnir2

My ears, the most sensitive measuring device I have used, tell me that break in matters for all my equipment, including my recently purchased Transparent interconnects and speaker cables. Funny how the demo cabling sounded warmer than the brand new cabling, and how it is becoming warmer and more neutral 

Suspensions that flex like speakers and phono cantilevers definitely benefit from some working time,  Caps seem to benefit from playing time as well.  It's harder for me to be sure about wire.  Sometimes it's just a matter of getting familiar with something and recognizing subtleties.  

I have fifty years of experience. Virtually all components have breaking. I broke in three identical Audio Research amps, each had the same very specific behavior over 600 hours. Around 120 hours after very notable improvements the sound quality would vary flipping back and forth between really good and bad. I can describe the specific behavior of different preamps.  The Audio Research Reference 5 series has a very unique warm up sequence. The Reference 6 has nearly none.
 

Hearing breaking requires listening skill and a resolving system. Some people don’t have the skill, interest or system.

"Hearing breaking requires listening skill and a resolving system." +1

"Some people don’t have the skill, interest or system." and these are the ones teaching others that it is all imaginary and delusional.

If one does not hear something, it does not mean that it does not exist.