I own a pair of Hifiman HE-500 headphones and I was curious if there are any closed back cans that would complement them? I have grown very accustomed to the sound of the 500's and I like them greatly so I have been wondering about a closed back headphone to add to my collection. 

Hello everybody this is my first thread on head-fi and i have been trying to figure out which one of these headphones to get. I already own a pair of ATH AD700 and ATH M50s/LE's. But now i just wanna upgrade to a better higher end pair. And yes i realize that this subject is thrown around a lot...