Love getting new equipment, hate the break-in

I have to say, it took better part of a year for the voxativ AC 1.6 widebanders on the Pureaudioproject quintets to become  tame. Sometimes you don’t realize you have pain until it’s gone. 

@sns I think there is no use to argue with "roadcykler", he knows better than anyone. It is the fact.

Burn-in is real, for sure. But it is in your ears/auditory center. That is referred to as habituation. I challenge anybody to do a blind A-B test with a burnt-in component vs out of the box. Good luck! Re capacitor formation/degradation etc., the question is, does it matter, is it audible?

BTW: null hypothesis in statistical testing is "no difference".

A genuine new, be it OS or current production, signal tube will demonstrate improvement in performance with time, to a point upon which it levels off, relative to initial performance.

@oberoniaomnia  Statistics don't mean doodly-squat.  Did you verify this on Youtube?