[Nankai]

Most MP3 players are like those walkman or discman after 1993. They add too much concept which is harmful to sound quality, such as eq. They try to make the product as small as they can. They try to make the working current as little as they can, so that they can show off their new tech of long battery life. They successfully made most of their customers believe that "fancy" or "cool" is more important than sound quality.

I may not have enough new knowledge about some novel concepts in current mp3 players, but I do understand how to make a portable hifi. During last ten years, I owned and studied almost all sony walkman/discman and AIWA Cassette Bay from 1980 to 2000. Most my study is about those ancient players before 1990. I don't think any mp3 players can beat an old discman or walkman (For example, SONY D-25 DISCMAN and AIWA HS-P9 Cassette bay) in sound quality.