Queries on the digital music! ! !

Users questions: I love music, listening to music to achieve better results, it has been deliberately put down the MP3 player, recently bought a high-end of a fly is a relatively common MP3600 force more dollars. After using for a long time the more that the "superior goods" and my original MP3 that 100 pairs of little two-block Like, is pretty amateur point, I feel that almost sound quality, can not find a place to do differently. I have a question that is not the MP3 before in the human auditory seem similar, can not tell what? Or, my hearing problems. If the former, then why has so much to create and invent High-end MP3 player? 7,777,771, generally you will not have problems hearing, but the taste level is not known; 2, MP3 is already compressed stuff, like HIFI on the CD; 3, must have high-priced to sell with good taste; 4, a If sound is good, is not a device in which high File, but in the whole match.
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