haha i see this before, but only the port to female 3.5mm jack only...
better use the adapter and use original SE HPM70.
(in fact sometimes i lent my HPM70 to my fren who use N80)
sound is good, but still,,, although i put it in the "bass-booster", it can be loud, but the bass is not as good as SE phones with edited EQ, summore the bass uncomparable to MegaBass for sure...