Pros: Treble, mids, size
Cons: Design, cost cutting in areas, hairs get stuck when adjusting, bass will not quite some people
On clearence as there are T51p and dt1350s now so I went ahead and got these for use on the road and in the office. The other phones I own right now are the over ear momentums so this review is in some ways a comparison.
I was a bit apprehensive due to the negative reviews here on head-fi from some owners. But I was somewhat pleasently surprised when I received them.
Build, looks and comfort:
The momentums win this one hands down. The T50ps has more of a raw industrial look to them, while the Momentums looks like (to me anyhow) a set of classy headphones. This is sitting on the desk, wearing them I have to say the T50p looks better while being worn. Comfort wise the momentums wins, they are so light and well designed they almost disappears when you put them on. While the T50p are not uncomfortable as such, they feel fiddly to adjust, has more clamp pressure and feels less secure on your head.
Materials wise I think Momentum are better, the fact that the T50p uses a set of bare rivets for the ear cup pivot make them look a bit cheap.
Design wise you have to wonder who approved a the T50p where adjusting the head band length will almost always (on a guy with shore hair) result in painful caught hairs?
Well as a newbie I don't know how much my impression would mean to the old salts around here. Anyhow, I found them to be quite good. Yes, the Momentum has better sub bass and better bass in general. But the T50p are not bass-less as some might lead you to believe. And in some tracks I found more details in the bass in the T50p than the momentum.
Overall the Momentums are better overall with a more "effortless" presentation. But the T50p does some sounds better in the mids and treble.
For what's it's worth I never encountered that tricky positioning issue that maybe only the early production models experienced. The only way I can reproduce the nasal vocal description was to move them into a postion where it is very clear to me they weren't sealing. In fact they sounds perfectly good the first them I put them on my head without fiddly adjustments.