I'm reading my new issue of Stereophile Guide to Home Theater and there's a Ayre amp review. The reviewer talks about having to break in the amp for 100 - 500 hours. Now breaking in SPEAKERS...I'm a strong believer of and totally understand why as the cones and drivers are mechanical devices that "softens" after a number of hours. Kinda like how the pistons in a new car need a few thousand miles to operate a peak capacity. But amps? Why the need to break in a completely electronic device. I don't get the science behind breaking in electronic pathways? Do the transformers and capacitors and resistors actually change in value after some amount of usage? That is, do mechanical factor influence their change, or is it pure an electrical change (and if so, how is that possible)?