pioneer A 30 amp
Yes he400 better on the i phond 5s than nad on the i phone 5s. But he400 are good for sitting at home, nad is more portable, but my akg k845bt are more portable for the exterier, just because of the look and comfort. So my conclusion:
For home use: he 400
on the go: akg k845bt
But I have listened to nad just for three or four days, maby after a longer period I would get used to it. I like the mark NAD (amps), so maby when i get to some free money, I will give nad vido a try, but first I will buy he400.
On the other hand, the NAD is just perfect on portable/iPhone 6.
Amped, HE-400 becomes perfect as the bass to sub-bass comes out and balances out the treble. The NAD otoh becomes a bit warm die to more bass to sub-bass added.
What specific music/recirding you listened to? I mean, what exact song, singer and record label?