Sennheiser CX 300 II Earphones Review 2021

The Sennheiser CX 300 Ii Has A Bigger Number

The Sennheiser CX 300 II earphones are the next model up from the CX 281 at a more expensive price. Features stated by Sennheiser include bass-driven stereo sound, custom-fit earpieces, and high attenuation of ambient noise.

It comes with a carrying pouch and should work fine with most MP3 players, iPods, CD players. Looking at the specifications the frequency response shows that yes there will be decent bass (19 Hz) but the high ends won’t be that great at 21000hz in comparison to other earphones like the original CX 175.

The human ear cannot hear above 20khz anyway so it’s not such a big deal. The sound pressure level is at 113 Db, a dramatic decrease in comparison to previous versions but that’s not a problem because you don’t need it that high anyhow.


  • Great comfortable fit, noise isolating and has good bass.
  • Comes with a bonus pouch to put them in.


  • Expensive, fragile – can break easily so be careful.

Editor Rating


You Got Mugged So You Can’t Complain!

Without the public opinion of lots of people, it’s impossible to make a legitimate review. Overall customers say the build quality is much stronger than ever before and although the design is different the sound quality is still excellent. There’s quite a lot of people complaining that they broke into 3 months of usage.

It is questionable whether they bought fakes so be certain that you are buying from a reputable seller, even with retailers like Amazon. Most were pleased with their purchase and found them extremely comfortable to wear. With great sound isolation comes great responsibility, look after these and they will last long. One last thing, because of the apparent comfort fit and high-quality noise isolation it will make up for the difference in sound pressure level as mentioned before.

Sound isolation I find to be far superior to the original Apple earphones supplier with my IPod. I would hazard a guess that the isolation has been improved by at least 10dB. Listening on a bus or train is certainly much more pleasurable.

These are good and they come with a nice pouch. People said the pouch was a bit bent, but I still use it.

They are a very pleasant surprise, but do be careful with them as they break fairly easily. Sennheiser will replace free of charge, but also watch out for fakes.

I am very pleased with the quality of sound, it is superb compared to many other headphones of this price range. These are by far the best I’ve tried sound quality-wise.

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