Originally Posted by upstateguy
So maybe, just maybe, if it can be shown that there really is an audible change after 300 or so hours, that the 701s have deteriorated enough from their pristine full frequency response to one that is more tolerable..... nah, there's no such thing as burn in. Tull's numbers were too small to be audible and apparently there were too many variables to draw conclusions.
You're saying that burn-in as such does not exist because it's just a process of deterioration meaning that over time the headphone diverges from its ideal (fresh out of the factory) properties, right?
Makes sense. Basically it's a matter of definiton.
If we look at the original use of burn-in, for example for electronic components, we can see that it's used to detect components that would fail due to a high initial failure rate before they are being placed in service.
Burn-in of headphones on the other hand is for example defined as (from the burn-in faq):
Originally Posted by Zanth
When speaking of headphones, ‘burn in’ is the term used for the settling oft he design parameters of the diaphragms into their intended state. The physical process is that the diaphragms loosen up through use and eventually reach a point that could be considered final. A similar situation is breaking in a new pair of shoes.
There are at least two problematic points here,
1) that the definition implies that the pristine state of the headphones is not their intended state, and
2) that the process of burn-in slows down or stops at some point when the state doesn't really change anymore and could be considered final
In my opinion 'burn-in' is a misnomer here and 'break-in' would probably be a better term for what is described above.
Break-in of engines is usually done in production and not by the customers themselves.
I don't know of manufacturers that do the same with headphones - the big question is why.
- a headphone's pristine condition is the ideal one and everything else that follows just causes deterioration from that
- or the process simply does not slow down
- or the changes are to small to be audible anyway
- or bigger changes are for the most part only temporary (for example due to heat build-up inside the driver)
- or ...Edited by xnor - 4/27/11 at 5:02am