Excerpt: First of all, I would like to thank Denon for sending me out the AH-C400's to review. These headphones, are the first "premium" range earphones that Denon has released. After being a big fan of the bass quality and quantity of the previous models, like the C710 and the C751 and especially the price...
Biggest Disappointment in the History of Headphones!!
ANDREW BENALI, Amazon
23 September 2014
Summary: What would you expect if you spent £80 on a pair of in ear headphones? You'd expect them to sound amazing right? Not these, I think its safe to say that these are the worst sounding headphones I have ever had the misfortune of listening to! And an RRP of £350! Someone must be having a laugh.
Summary: I have just returned my second set of these - the first stopped working after 11 weeks, the second after 8. If I had placed a review immediately (as I think many have done), I would have given 5 stars as the sound quality is excellent.
Summary: Very disappointed by the product, one ear stopped working after 3 months, no physical damage, the connection just gone... Paid for cheaper product and lasts even longer than this. I don't know whether I can get a replace, probably won't. Liked this headphone and now, can't use it anymore.
Summary: I bough these on 21st Nov 2013 and it's now 20th Feb 2014 - so only 3 months - and although they produce a great sound, the wires seem to have broken, as the sound keeps cutting out. I know wire damage is a common problem with headphophes, but 3 months!!!!! Come on!!!!
Summary: Needing to replace my Shure E3C-N earphones (excellent fit and sound quality, loved using them until a cable-break has killed the right side after 6 years of heavy use) I thought I'd try a different manufacturer.
Summary: After owning the ah-c300 for the past year sadly gone faulty i thought i would take a step up for the new ah-c400 considering they had dropped over 100 sincei last looked at them. Expecting the same amazing sound quality i was excited to try these..
Summary: As every review I read mentioned before i purchased these, the headphones have a lot of distortion when you reach the top end of the volume. Inexcusable for headphones at this price. But when there's a lack of deep bass, their performance is amazing..