I'm looking to finally get into the world of higher end headphones. Problem is, I don't have access to "test drive" very many headphones in my area. So, I'm coming to the denizens of head-fi for suggestions on a pair of good over-ear headphones that will suit my musical taste. So here's my situation:
First, I've already picked up an O2+ODAC combo to replace my lackluster onboard audio which has given me issues with background noise, so amplification shouldn't be an issue for most headphones.
Second, I listen to a LOT of bass heavy music, but not the genres that the average Joe typically associates with bass-heavy. What I'm talking about is lots of Doom Metal and Sludge Metal. Down-tuned guitars, down-tuned basses, basically down-tuned everything. So for that, a lot of presence is appreciated but I'd like it to be CLEAN. When trying out my friends' ATH-M50's, I noticed that the bass range was very clean which definitely made me happy, but there wasn't as much presence as I'd like, especially compared to my current cans (Sony MDR-MA300's, which, while providing a lot of bass presence, are not the cleanest sounding in the world.) I would definitely like a SLIGHT boost in the bass section as long as it doesn't come at the cost of reduced clarity.
I also don't care too strongly with headphones with peaks in the treble, so neutral or even slightly recessed highs would be perfect. Mids would ideally be fairly neutral.
These are going to be for home use, so open headphones are perfectly fine (and actually a little bit preferred, but not required).
With that out of the way, my budget is limited to about $350-$400, and I've been eying a few sets of cans pretty closely for a little while. To name a few, I've been intensely interested in the HiFiMan HE-400's as well as the Beyerdynamic DT880's. I'm definitely leaning towards the HE-400's because the sound signature sounds like it's pretty near perfect for what I'm looking for and the idea of Planar Magnetic headphones sounds like a good improvement over dynamic drivers (although I've never heard planars before). The 880's also sound like they'd tickle my fancy, but I am a bit worried about some of the descriptions about the enhanced treble.
So, now I turn to you. Do the HE-400's or the DT880's sound like they'd be suitable to my needs, or is there a better option out there (in my price range) that I may not be aware of?