BTW, I read your DM5 review and found the same anomaly that you did.
Outside of vocals, the center was just dead space which I've never experienced with an IEM before. When you couple that dead space with the DM5's strident tendencies in the higher frequency range. .....
.....well, let's just say I'm not a fan, which is unfortunate because it had other attributes.
.....and like Brando says, it "could've been a contender".
With all that said, I'd take my ES3 over the DM5 eight out of ten times, even though it's slightly less refined. The DM5's separate drivers really give it the upper hand when it comes to definition, but it's shortcomings are simply too obvious to overlook. The only time things get uneasy with the ES3 is if a track is mastered with mid-bass that's laid on a bit too thick.