I have done some digging and researching for some closed portable headphones in the $200-$250 range for listening to metal. I spend a lot of time in the library, so I need something I can wear for hours at a time with good isolation. I came up with these three:
Beyerdynamic Custom One Pro
I know the M-100 is more but I am willing to spend more if it is worth it. As for the Beyer's, I found them on Ebay for about $200, and the MDR's I found for about $220, the M-100 is full $310. What do you guys think?