Hi, JohnK. I didn't say the Fostex 200A sounds like the 206E; I said that the Audio Nirvana Super 8 sounds like the 206E. While you don't care for the 206E, some people prefer them. David, of Commonsense Audio, a dealer for Fostex among other brands -- http://www.commonsenseaudio.com/ -- says this:
"The FE206E is the most detailed, the most extended, the most efficient, the most natural sounding, and has the best bass of all Fostex speakers." So that's what makes horse races. People hear speakers differently, and frequency response alone isn't a good indicator of how good a speaker will sound to any particular person...