Crossover parts need time to break in. Caps and resistors can take up to 300-400 hours to settle in. This is particularly true of the large value paper in oil/wax types that change sonically quite severely. Break in can also be like a roller coaster ride with things improving at first, going south for a time and then finally entering that final linear stage of constant improvement.
Speaker Break In...? Or listener “Break In”?
Im interested in opinions regarding which has more impact; a speaker changing sound over the first 100-200 hours or a listener becoming more in tune with a certain speakers qualities and characteristics.