Can a component after complete breaking reverse ?

Break in is an urban legend.

I love your question - can a broken component become unbroken. Only audiophiles even know what is being asked. Normal people wold say it breaks the conservation of energy principle.

In the realm of the audiophile this is one of those some people hear the effect and other do not type questions. I vote YES, it can happen. It may not be break-in, but most components require a certain amount of time after being turned on to reach thermal equilibrium and optimal audio performance. Also any time you attach or disconnect a cable the sound can change.

Tvad, I think you mean capacitors will hold a charge for the better part of a day but take only milliseconds to become charged.

Tvad, I think you mean capacitors will hold a charge for the better part of a day but take only milliseconds to become charged.
Timrhu

Nope. I meant what I wrote, and I was simply passing along what I have been told by two amplifier manufacturers and one power conditioner manufacturer within the past six months. I'm assuming they know what they're talking about since they're professionals. If not, don't shoot me...I'm just the messenger.

Tvad, they are incorrect. Very easy to demonstrate by connecting an electrollytic cap to a power supply for a second or two. Disconnect it, short the two ends with a screwdriver and watch the sparks fly. Back in my Air Force days a common practical joke in maintenance shops was to charge up a big ol cap and sit it on the bench for the unsuspecting rookie and have him install it in a power supply.