I can't suggest a reason, but I had a similar experience with a pair of Golden Ear 2s. I finally had to give up on them. I have owned many brands and sizes of speakers and played all volumes and kinds of music, but only the Golden Ears had this effect. It seemed to be some high-frequency causing it, but similar ribbon tweeters in Martin Logans don't produce that effect.
Ears hurt when listening after changing speakers
For years I had multiple models of Maggies and Martin Logan speakers. I could play them very loud with no problems with my ears. A few months ago I purchased the Rockport Aviors and now when I listen at moderate to high levels my ears start to hurt. Anyone one else experience this when changing speakers and would like thoughts on how to resolve other than turning the volume down. I do love the Rockport.