You might need to adjust the length of the cups. I don't think the DT880s are heavy enough to really hurt. Maybe you need a new headband pad?

Trust me... if the earpads on the Momentums had been just a little bit larger I definitely would have kept them. Shame on Sennheiser for calling them over-ear headphones.   I haven't heard the MDR1R but I don't think they're quite lacking in bass, they just don't have the same presentation or...

  Honestly I would tell you to return them and try out the MDR1R... I loved the sound too but if you can't wear them long enough to appreciate it, what good are they?

  You are just experiencing the small size of the pads. That, and your ear shapes may not be perfectly symmetrical. I had to tuck my ears inside the Momentums to get them to fit right, which made them start twitching after about 30 minutes... I loved the sound and design, but I had to re-adjust...

Just an FYI I'm not going to be bringing my gear seeing as pretty much everything is accounted for... Everything I have, anyway. I'm just pumped to meet some fellow HeadFi-ers! ....wellll, and hear some incredible setups.

Oh dang! My friend sent me the link to this, didn't even know it was going on! I'm so there. I live like 10 minutes away.

Strange. My DT880/600s could've gotten too loud to listen to purely off the One. They got plenty loud at 75% volume.

Just to add my two cents -- I got my One on Tuesday and I've been playing with it nonstop. I figured I'd search the forums to see if anyone said anything about the dedicated headphone amp. I have to say, this phone does sound quite good. It drove my DT880/600s with no problem (volume-wise) at...

Dang, you weren't kidding! Those vocals are amazing.   Matt, I think you thought this was the wrong thread... of course I would EQ down treble on the HE-400, but I would still push sub bass up... 

Here's my crazy EQ...       And it sounds amazing  some of the most pleasing bass punch I've ever heard.

The HE-400s don't even compare to Beyers for comfort. IMO the HE-400s are like wearing a vice with a brick on top, whereas the Beyers are like wearing a halo. 

I personally love the long cable. It's long enough to reach from my receiver to my bed so I can lay down and watch shows without my speakers at night.

Got my Omega headphone stand!     

Got my Omega headphone stand from Massdrop today!    

Just reading about headphones blasting your ears at max volume, even for a split second, is making my ears hurt... ouch.