ri_toast
500+ Head-Fier
partybreaker the m6 setting are very easy to use, set and forget. the d2s settings are much more complex and flexable. bottom line is both players have great sound quality. i do remember that the m6 sounded awful the first time i'd used it. who knows what meizu was thinking when it was in default mode. i still don't think i've discovered every setting that the d2 can provide.