I mention my age because that may explain why others complain about piercing highs and sharp peaks, but I enjoy the treble. Perhaps my old ears filter out the harshness. For curiosity's sake I ran an online tone generator at the same volume I was just listening to music at for an hour. I was able to clearly hear 25 hz to 16.5 khz tones. Much better than my Tenhz P4 Pros, which were more like 50 hz to 15khz. I agree that the sound is colored and unrealistic but it reveals so many details that I'm definitely keeping these in my lineup. These are fun yet detailed, an odd combination. Neither of the sources I'm using are known for extended highs, I plan to take these to work and try them with my Sabaj Da3, which kind of are. If theres anything notable to report, I'll add a comment.