Sennheiser Adidas CX 680 Sports, focused on music

We have reviewed many headphones before, such as these from Denon, so you can imagine our delight when were sent these Sennheiser Adidas CX 680 Sports headphones. The meeting of Sennheiser and Adidas means that these headphones will not only be focused on the music, but also workouts while on the go.

First impressions were a little mixed, as when you first take them out of the beautifully packaged box we were surprised at just how light they were. Now in our experience light in-ear headphones like these means that they will not be able to hold their own against the likes of those Denon ones that we reviewed. However, we should not always read a book by its covers, as they could be hiding something, and if know Sennheiser then we can expect something very special here.

First we would like to note that we were impressed that in the box there was:

  • 2 sets of extra earbud sizes
  • 2 sets of extra earhooks
  • Alligator clip for securing cable.
  • Cable extension for the earbuds, with included volume control.
  • Carrying case
  • Cleaning tool
  • Instruction manual
  • The earbuds themselves

Surprisingly there was also an instructions manual, which is a little rare for headphones. This shows you how you should remove the earbuds and use the cleaning tool to remove the diaphragm guards. Before we get on to see how well they perform we would just like to point out one or two other features that we were impressed with.

The first is that you can either go with a short lead configuration, or use the extension, which means that you also gain a volume control. This comes with a handy clip, so ideal if you wish to go out jogging. The carry case is the icing on the cake here, because we have seen just how tangled the wires can get when left in a drawer somewhere.

Knowing which was left and right was a little difficult, as there are no signs on each headphone, but thanks to the instructions manual we know that the earbud with S on it is the left and the Adidas logo is the right. Normally I have to change the earbuds to one that fits more tightly, but the set that was already on the device was perfect — it’s as if they were molded just for my ears.

You can instantly tell that sitting with them in your ears for hours at a time will not hurt your ears in any way. Having them in you can still hear outside noise, which we feel is important if you plan to jog in the street — just hope that this does not affect the sound quality.

The moment that we selected a song we knew that both Sennheiser and Adidas have produced something very special, this is thanks to the High-output ear-canal drivers and also being Acoustically closed. We only had the volume halfway and there was no hissing like there is in cheaper products. Bass levels were very good, so no fear of getting a headache due to a tinny sound. We were very surprised that turning the volume up to full did not distort in any way, however, they do not go as loud as some other headphones out there, but is that really a bad thing?

Overall we loved the waterproof finish of these CX 680 headphones, as you never know what weather you will run into while out jogging. If you are only a casual listener then these headphones are certainly worth the purchase. The one issue is the cost, as they are far more expensive than other mid-range headphones, but then again we believe that these do have the edge in sound and build quality.

For more details visit Sennheiser UK.

Main features include:

  • 2-year warranty
  • Acoustically closed – blocks outside noise effectively hence more recommended for indoor use
  • Cable clip and storage pouch included
  • Dupontâ„¢ Kevlar® reinforced cable: superior strength and reliability
  • EarFin holding system: secure and comfort fit during workouts
  • High-output ear-canal drivers for energizing sound and high noise insulation
  • Short cable; option of using extension cable with volume control
  • Sweat- and water-resistant: ideal for sports
  • Variety of ear-adapters (S/M/L) included

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Written by Peter Chubb

Peter has been writing on Product-Reviews since 2007 and in that time much has changed for him, like his hair having more grey than brown now. He loves gadgets and cars, and gets excited when big events come up, such as CES and the big auto shows.

Contact Peter Chubb: [email protected]

He started out working in a factory and dreamed of the day when he could become his own boss; That happened back in 2002 and he has never looked back since. Things have changed so much on the Internet in that time, but he has adapted well.

Contact Peter Chubb: [email protected]

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