Summary: The ST-800 doesn’t succeed at knocking any reputed headphones models off their thrones. However, it is a very good attempt by TDK. When it comes to build quality, some of the high-end headphones manufacturers could learn a thing or two from TDK. When it comes to performance, it looks like TDK was trying too hard to produce a masterpiece and maybe trying a little too much to think out of the box. And that’s worked, to some extent.