Just got my HE-400
I'm really surprised about the amount of bass that these have, just right for me
Sound is amazing, will be keeping these for a long time
Using a Magni and Xonar DX
Changing the pads was easy, got 2/3 in then used a card to get in the last one
Taking off the grill was easy too
Maybe some mods coming soon
The velour pads are really hard though



































