Well controlled sound, just like most other Sennheisers. Those

headphones are reasonably efficient. Most protable players should be

capable of driving them to unhealthy level. Before I get more specific I

need to state that I listen to mostly classical music and latin jazz.

PX200 has excellent mids, which is important to any music really. The

highs is a little laid back, so if you're into acid jazz or any music

with emphasis on high pitch instruments (trumpet, soprano sax, etc), you

probably will be disappointed with the PX200. The bass is the greatest

weakness of PX200, it doesn't extend far enough and mid bass lack the

proper punchness. For example, with orchestral music I can only hear the

notes played by double bass but not the actual instrument (if that makes

sense). Having said that, proper amplification improves things

considerably, but since PX200 is designed as a portable headphone, it is

only fair to judge it without amplification. Getting it to sit properly

on your head can be quite tricky, if possible at all for some people. If

you have to remove them from your headphone very often then look

somewhere else. If you have a large head, things can get tricky as well.

Comes with a durable and useful carrying case. Although it does take a

bit of patience to put them back properly.

These were my first portables. They're extremely portable and comfortable. They're small and they come with a neat case which I didnt really use since putting it in the case was not easy. These phones sound good for the price and seem well-balanced throughout the sound spectrum. They arent fatiguing at all. I suppose the bass could use a little more UMPH! but other than that, no gripes. They look cool and for the price, are great. They isolate fairly well too. I've never used the PX-100s so i cant comment on the overall difference but i hear that the PX-100s have more bass.

These head phones may not have alot of bass, but they are really detailed. I compared these with the Sennheiser HD580, and found that the PX200s are a little louder and alittle muffled. Although I cant really compare these closed head phones with an open pair of headphones because they are different. I compared the Bose QC2 with the Sennheiser PX200, which are both closed headphones, but the bose QC2 have noise cancelling. I found that the Bose has a really ugly bass and the PX200 has less bass but more accurate to the HD580. I'm quite impressed with these headphones, because they cost around 50 dollars while the Bose QC2 cost around 250 and the these produced a better sound quality than the QC2. These headphones are probably better for people that have relatively small ears.