[SteveHiFi]

"British firm KEF has decided to follow up on its acclaimed KEF M500 on-ear model with a slimmer, lighter version. It's not easy to follow in the footsteps of a famous sibling, and the work is cut out for the KEF M400 in this regard. However the KEF M400 has form which exceeds its weight class and is a real contender. The M400 would make a terrible boxer as it often remains out for far longer than a ten second count; however it's got me right hooked."
 
More at:http://www.hifiheadphones.co.uk/reviews/kef-m400-headphone-expert-review/
 

 

[Niyologist]

Looks interesting. I heard quite a bit of good things regarding to the sound quality this possesses.

 

[Greendriver]

Recently bought these. A bit disappointed to be honest. They cost me only £40 new although originally retailing at over £100. However, they are comfortably outperformed by my Skullcandy Grind! Never expected that...