Summary: I purchased these headphones and was pleasantly surprised to learn they are virtually identical to the much missed HD 497 headphones. If you check the specifications you'll notice the similarity. There is actually a slightly lower bass end (about 2kh). The only other difference is the earphone casing is black instead of silver. Not only that, I discovered that when I needed to replace the cord for my HD 497, the eh350 cord I used replaced it.