Yeah, the bass is muddy, but there is a very easy reversable mod for that.
Just cover the bass ports with some paper or gum or whatever. The whole mid bass area will go down like 5 dB, but it will be untouched above ~300 Hz. Perfect for what you need.
They also have like a 5 dB spike at 9k, which makes them a bit sibilant, but for that I just used a simple EQ. Now they are basically neutral, just as I like my headphones.