This is my first pair of on-ear portable headphones. I've had a bunch of CX-series in-ear phones and the cable always broke. So I wanted something on which I could easily replace the cable.
They're very small, could easily fit a larger pocket, they also fold nicely. They're also very nicely built, the materials are of good quality.
The sound is balanced, maybe a bit shy in the highs, the bass is not boomy and overwhelming like on most consumer headphones and the mids sound very natural.
They're confortable enough (actually I quickly forget they're on my head).
Overall a good purchase. Hopefully I'll be able to easily change the cable when it will go bad (cause it will).

I’ve been looking for a replacement for my Sennheiser PX200 first generation. I’ve had them for over 10 years now and the ear pads and padding on the headband are severely deteriorated.
My criteria were: highly portable, closed design, comfortable, natural sound. Max. € 100,-
This forum lead me to a bunch of alternatives from AKG, Beyerdynamic, Audio Technica and some other models from Sennheiser like HD228. This thread http://www.head-fi.org/t/433318/shootout-113-portable-headphones-reviewed-alpha-design-labs-adl-h118-added-07-15-14 was my starting point.
During the last year I’ve tried about a dozen of these that I fit my criteria.
Bottom line: I bought PX200-II and am more than happy with them.
They are indeed an upgrade and tick all the boxes that the previous version left open More characteristics: good, but not too much lows, good highs and a nice midrange without the coloration you normally get with this type of small headphones. If you look carefully, about all components are redesigned. Another improvement is the single lead design. Nearly all competitors lack that.
If you looking for headphones with identical criteria, then take PX200-II into consideration. There is really only one thing to check: you’ve got to get a good fit, otherwise you won’t get enough bass. This means that you have to try them for yourself.
Furthermore, these have a volume control in the lead, which is IMO useless. Maybe you’d better go for PX200-IIi if you plan to use some sort of i-device. That way, you also get more functionality.
They are not perfect, but for me these are the best I could get for this kind of money.
 
Cons they share with every closed portable headphones I've tried: missing top end (tingling highs), heat build up after some time.

When i got these, i was chuffed. i read from reviews saying they were good, so i had high hopes. fortunately, these cans definitely delivered  They look nice, and are really small and light. Comfort is a bit lacking at first, but when you get used to it, it gets better. Also, they are relatively affordable. Build quality is great, expected from Sennheiser. isolation is average, but what else do you expect from a small, sealed, pair of cans? Overall, the sound is good. The highs are slightly rolled off, but are smooth and never fatiguing. The mids are slightly boxy, but satisfactory nevertheless. the bass was a weak point of the first px200's, but because they now have a better seal, they're tight and weighty. Overall sound signature is balanced and natural, and soundstage is better than you expect from a headphone like this.
conclusion: Great value, and a brilliant all rounder. if you need a everyday headphone, definitely consider this as an option.

Writting this out of utter boredom...
 
Im an audiophile by nature and appreciate every bell and whistle that comes with a product. Been usin these for around half a year. Had to use the warranty once after the wire snagged onto a table which cause the left speaker to fail. First time it actually failed like that cause most other times it'd pretty much pull my phone out of my hand guess i got it to its breaking point which i often do with anything XD
 
Value:
I got em at a discount but, based on sound quality alone, sennheiser did not disappoint. They can get pretty loud if u want em to. Not to say they're overpowered. Just right i guess. These were built for those on the go and appreciate above mid level sound quality. But if u want more sound quality on the go than go get sennheiser's hd448 or others of the same caliber. You'll lose portability but hey there's no compromise for sound quality from a larger driver, not to mention how much more comfortable they'd be
 
Audio Quality:
If you're a bass maniac who wants portability than these cans shud be ok for you. Not just right but ok cause generally speaking, apart from the on ear design, they'd cause some strain on your ear drums and canals which i pretty much think is due to the sound pressure. Well if u use em for more than 45mins at 70% and above from the max volume. They'd handle pulsating rock, RnB and hip hop pretty well. The treble can get very pitchy and unnatural on certain songs and/or Eq settings.
 
Out of the box, the highs were persistent while bass and mids were abit shallow but after some burn in time a few weeks of wear and tear they balanced out each other and the pitchy treble lowered quite alot but its still there though, just not so prominent. The cups manage a pretty decent job in outside noise isolation not on par with active noise cancellation but more than enough. like i said above, you'd need a little wear and tear for the cups to actually soften up enough to mould onto your ears and effectively cancel most high frequency ambient noise.
 
Another thing is that ambient low noise, i.e engine hum on the bus, will severely dampen the bass causing it to actually blend with bass guitars or other bass instrument/sound in the song. Well its no surprise though i mean they are relatively small so there's not alot between your ear-speaker-and the outside.
 
Design:
These cans were built around portability for people on the go and on that basis it definitely scored an A. The metal strip on the headband seems to do its job well although i do feel the plastic will snap easily of u put some effort into it comes with a volume adjusting thingy, not sure wats it called lol, which is pretty useful especially if ur usin iPods or iPhones since they're pretty much fixed on volume so these volume adjustable thingys offer a good degree of volume control. The pads on the headband offer some comfort but due to its light weight design you'd barely notice em. You can practically shake your head like an arse and it'll stay on your head with close to little to no headphone movement. Like i said, portable rugged design...
 
Comfort:
Well simply put, they're more of 'put sound in your ears while u move from A to B', in this case A to B would be like goin to the shop across the street and back home. They're comfy for about 10 mins ONLY. Well thats my opinion. In which case they'd do fine for people on the go who wants to kill time with music.
 
Verdict:
Nothing's perfect and there's a reason why there's thousands of different headphones on the market each purpose built. If ur the music lover always on the move and you want sth that blocks some ambient noise, rugged in design than go grab the px 200-II or some other model of the same caliber just do you research....
 

 

 

The PX200-II are a nice little set of portable cans, maybe the best Sennheiser has out right now in their budget lineup. Amazingly enough, the Headroom frequency graph does not lie: the general sound signature is the same as in the venerable HD25-1, with a bit of treble roll-off.
 
I really enjoyed these cans while I had them. The sound is smooth, with restrained and very fast bass, once you get the earcups in the right position. Some people might find the bass quantity lacking, but there's no doubt about the quality. The mids are upfront and very energetic, which, coupled with a fairly tight bass, might put some people off, as the overall sound can be dry and a bit cold. Detail retrieval and presentation are just ok, nothing exceptional. On some tracks they can sound a bit boxy or congested. Highs are a bit too recessed for my taste, or just not detailed enough, as every cymbal note on these sounded the same to me.
 
Build quality is very good, these things are ment to last quite a bit. The only problem could be the cable, especially at the strain reliefs and the volume control - quite an annoying feature, actually, because you have to clip it to something at all times. If not, the cable will drag the left earcup down quite a bit.
 
Comfort is very good: the earcups barely cover half your ear, and the clamping force is just right to keep them on your head without it becoming bothersome. Even in summer, these can be worn with minimal discomfort.
 
Isolation is ok, but I didn't really think it was enough for loud buses or the subway. It might be good for walking or jogging, but you will hear what's going on around you more than you'd want to, even with music playing.
 
Overall, I'd say this is a good alternative if you've ever wanted the HD25 and cannot afford it just yet. Bassheads, stay away from this one.