[KnightOfAwesome]

Well after researching the AH-D2000's that is shot out of the water... I found a dynamic range graph a thought to myself what nice headphones they must be.
 
This review here makes the SRH-840's look really appetizing
http://www.head-fi.org/forum/thread/480354/closed-headphone-shoot-out-k271-vs-dt770-vs-d5000-vs-srh840