I am not going to argue with Duke as he surly knows a lot more on the subject (audio) than I do. I am sure all of those things contribute in one way or another. But it really comes down to volume.
As to others claiming metal domes are the cause of fatigue/brightness get real. Yes some aluminum domes will break up around 20khz but I would bet 90% of the population on this forum could not hear jack above 17khz. With all of the new alloys out there the breakup node is pushed MUCH higher and well out of the audible range. But yes the highs will wear out your ears much faster because of the higher cycle rate.
Anyway a lot of fatigue comes from where the ear is most sensitive, the upper mids lower treble 3000-4000hz. People tell you metal domes are the down fall like a dark color to their sound (nothing wrong with that) but to push the opinion as fact is a joke.
But really turn down the volume your ears are tell you what they need. If you like the volume very loud you may like a slightly darker speaker or one with a small dip in the upper mids. Also keep in mind distortion can cause a lot of energy and the excessive energy can also wear out your ears. Typically speakers will less distortion can be played louder for longer before fatigue sets in.
As to others claiming metal domes are the cause of fatigue/brightness get real. Yes some aluminum domes will break up around 20khz but I would bet 90% of the population on this forum could not hear jack above 17khz. With all of the new alloys out there the breakup node is pushed MUCH higher and well out of the audible range. But yes the highs will wear out your ears much faster because of the higher cycle rate.
Anyway a lot of fatigue comes from where the ear is most sensitive, the upper mids lower treble 3000-4000hz. People tell you metal domes are the down fall like a dark color to their sound (nothing wrong with that) but to push the opinion as fact is a joke.
But really turn down the volume your ears are tell you what they need. If you like the volume very loud you may like a slightly darker speaker or one with a small dip in the upper mids. Also keep in mind distortion can cause a lot of energy and the excessive energy can also wear out your ears. Typically speakers will less distortion can be played louder for longer before fatigue sets in.