ATTENTION: Amazon mixed here the over-ear and on-ear cheaper

First of all:

Since I benefit much from reviews I would now like to pass on my experience.
Seeking a headset for home and travel. If possible, a warm sound with a slight space, not flat and dull sound. Treble, mid and lower frequency range to be reproduced neutral, although with bass, but not as exaggerated as it is the fashion today zeitgeist.

My source: all music in AAC 256 kbit / s from the iPhone, so important with operating unit for iOS devices in the cable.

I hear a lot of electronic music, pop. Rock (Symphonic) Metal, Jazz

Everyone takes sound was different and has different preferences, each player is music different. And then there's of course the song quality of CD, lossless or lossy music (mp3, AAC). I can only advise everyone: Test results and postings read, but do not buy alone after that but myself Pre-listening, listening, listening.

So far tested, some reviews are still pending:
AKG K551 (Over Ear)
B & W P3 (On Ear)
B & W P5 (On Ear)
B & W P7 (Over Ear)
B & W C5 (In Ear)
Bose Tripod (In Ear / Earbud)
Bose MIE2i (In Ear / Earbud)
Harman Kardon CL (On Ear)
Harman Kardon NC (Over Ear)
Harman Kardon NI (In Ear)
Harman Kardon Soho (On ​​Ear)
Marshall Minor (In Ear / Earbud)
Sennheiser Momentum Over Ear
Sennheiser Momentum On Ear

Sennheiser Momentum (both):

Packing:

The hammer, a very noble cardboard, the open acts even more precious, the KH is in another, shell-shaped package with a zipper. Since Sennheiser has come up with something really. But the packaging is expected in purchasing cost quite a bit. The booklet, however, is very simple and could be a bit more imaginative, see B & W.

Material / Optics / processing:

Topp. The retro look might not be for everyone, I find it beautiful. A selected mix of materials and excellent workmanship, no creaking, no squeaking. There are 2 cable, a long for the hi-fi system and a brief with front panel for iOS devices, very nice and completely made of aluminum (over-ear) or aluminum / plastic (on-ear), slightly larger than the competition but again, the keys are easy to distinguish but nichtb optimal. Toll-designed and high quality is the bendable (only for over-ear) and very robust Alustecker. Included will be an adapter jack small to large. Mobile one is limited because both are non-folding, the shells are fixed.

Head Office:

Perfect of all KH I Thanks to the soft leather has know the over-ear the best fit. Very pleasant, even for hours no pressure sensation, even with glasses. Since the leather breathes, even in the summer in the blazing sun without roux ears. The inner diameter may be 1 cm greater, do not always fit into the ears exactly what however does not bother me.
The on-ear has a rather strong pressure, but now I have a big head. The Tragekomfor is still ok.

Sound:

Over-Ear:
A quite warm, pleasant and unobtrusive sound, he plays heavily in midrange and upper bass and lower height range. Unlike some other KH Momentum is not exhausting. One reason is that the upper treble and the bass are virtually non-existent, because these frequencies can be quite stressful if sound the heights sting (AKG K551) and the bass rumble (Monster). But it bothers me already, because that to me sounds of Sennheiser too shallow, I also lack the space, it sounds like the music on the head inside comes, not from the sides, so somehow mono instead of stereo. In very exaggerated, he sounds a bit as if I'm sitting in a tin can. That's whining at a high level, because overall it plays sound already in a higher league, which you can also see the many positive test results. Sound is just a matter of taste. Volume is ok, for people who love to hear very loud, it is possibly a little too quiet.
I can not say anything, I heard him just at home on the attenuation of ambient.

On-Ear:
One would think that the more expensive of the two momentum was coordinated linear and a few months later nachgeschobene, 100, - more favorable, was designed more for the masses, as many 300, - is too expensive. And that this very favorable fashion is correspondingly bass-heavy. Nope. The On-Ear has what his big brother has not .......... soul. A fantastic sound, there they are, the lack of overtones, the lack of bass and the room, which the Over-Ear anything missing. It sounds fresh, clear and airy. And still warm. Very nice for me of all KH tested so far the no.. 1
Volume is ok, for people who love to hear very loud, it is possibly a little too quiet.
I can not say anything, I heard him just at home on the attenuation of ambient.

Conclusion:

Packaging, headphones, materials, remote control connector, all the finest materials and designed with great attention to detail, the best seat on the ears (over-ear). Full marks. The on-ear pushing something.
Sonically plays the over-ear indeed already viorne with, quite warm and pleasant, but that bothers me, however, that the upper and lower frequency region is cut off, the sound is a bit flat, no space.
Now, however, the on-ear: he has everything the big brother has also (apart from the comfort and leather, but the sound makes everything better, beautiful clear heights are there, the bass and the spatiality.

What did the small on-ear what the big brother Over-Ear has not? ........ Soul!