This might sound strange but if I run the 400i's out of the Modi 2 and apply an EQ, it immediately becomes unlistenable and super muddy. If I run them straight out of my PC, I can apply any EQ I want with no sound distortion at all. Very confused by this..

Hey guys. I'll try to make this quick and to the point. Currently own a pair of HE400i and ATH-M50. While the 400i sound super clear and sound fantastic, I'm looking for something with more of a bass punch like the M50's have, but with the clarity and level of detail that the 400i's have.   I...