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 point they came at, I was vastly interested what the first ever balanced armature drivers from Denon would offer.
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.. classical music and scores were phenomenal most of the time, but top 40, or electronic music, anything with a beat..