Summary: Build, look and comfort: These iems look very nice, has unique design. The earpieces seem built sturdily, the cable seems durable. These are so comfortable that you mayn't feel they're on your ears after wearing them for some times. I would appreciate flat cable like mh1c or xb series from Sony.
Sound: before burning in, there's a very noticeable hiss in the sound, around 16khz. Feels like breaking glass or something like that.
After burning in, that hiss is gone.
Pros: price, isolation, louness, comfort, warm and good soundstage.
Summary: Agree with others on the terrible build quality. Great sound when working, but after 8 months I had to get a replacement pair as they stopped working. Exactly the same issue now, after another 6 months. Going to have to buy non-sennheiser no to replace the second broken pair, as clearly these headphones have a very short lifetime.
Summary: I was worried about how long these would last as previously a pair of sennheisers have only lasted me days. 6 months later and they are still functioning perfectly though! They are comfortable to wear and I am pleased with the sound quality; they drown out the London Underground on a daily basis and I also use them to go running with.
Summary: Had these headphones for a long time now and they are still going strong(ish) The quality is very good for the price you pay. I found them comfortable to wear for any amount of time, and they also come with different size buds depending on your preference which is nice. There is not a whole lot I have to say other than that I would highly recommend them to anyone that's looking for good quality at a low price.
Summary: The quality of the headphones themselves is great. They work as intended as per audio quality. However, I've had two break over the last year from very general wear and tear. Also, the wires themselves seem to invite a lot of shuffling static noise in with your music when using them. All in all they work, but the build quality is pretty awful.
These are very good headphones, even without taking into account the price
john rawlings, Amazon
29 August 2014
Summary: These are very good headphones, even without taking into account the price. I break my headphones alot at work, so have had many sets ( at least 20 so far) and these sound as good as the see beats I had. Clear precise treble and a nice deep rounded bass. Comfortable to wear too. I've had the 300ii and the 475 ones, Tbh these sound just as good as the higher speccd. I'm using them on my HTC one for mp3's etc.
Summary: I have used a different model of sennheiser headphone before (cx150) and they were great! Lasted about 2 years, but when it came to replacing them I went with these as they were a bit cheaper, big mistake. The first pair I got, one headphone started cutting out after about a week, so I got a replacement pair and the same thing happened again after a few days so I got a refund and bought the cx160 model and they have been perfect, great sound, a more substantial cable and...
Would not recommend. Do some research and find a better pair.
21 August 2014
Summary: Okay so I've been using these headphones today and I have to say I'm really disappointed. Coming from Sennheiser I expected really good quality sound, but this wasn't the case at all. High frequency sounds like Hi-hats and claps sound extremely sharp and actually made me wince, causing me to turn the volume right down to stop the "hissing" noises. Any track with these sounds in instantly becomes unusable.
I've always been a believer in the quality of Sennheiser ...
Mr. P. D. Clark, Amazon
24 July 2014
Summary: I've always been a believer in the quality of Sennheiser, I had a trusty pair of earphones (the previous generation of the Sennheiser MX 375s) which lasted me a long time and had a decent sound for ear headphones. However these CX175's fall well short of the quality I expected. The treble is very 'tinny', not much resonance and the bass is virtually non-existent.
Summary: Love these earphones, great bass sound without detracting from any other sound quality. The wires are equal lengths so no long and short leads, which, from other reviews, users didn't like. They are really noise cancelling, I use them whilst on my bike and I don't experience too much wind noise. Thoroughly recommended.