Not that anyone will care, but I couldn't agree less with the review. I had the 497s just 4 days before I sold them. Yuk. No extreme treble and otherwise totally mediocre. And yes, I did burn them in--for about 40 hours. Interestingly, I've just got hold of a pair of HD 56's and find them much more satisfactory. A cheap headphone, yes, with some typically cheap headphone limitations including mid-bass boom, but to me they preserve the fundamentals of the music far better that the 497---I could actually live with them if I had to (but please don't ask me to), whereas I couldn't tolerate the 497s for more than a few minutes.