I'm looking at the sennheiser hd212 pros or something around the $100 price range. I need closed back headphones, and I have heard that the hd212's have to much base, and that the mid and highs are not balanced, is this true? I'm also looking at the audio technica ath m40's, the fostex 250rp, and the Roland Rh 200 headphones. Which would be the best sounding headphone out of those for rock, or anything but base beats. Any other quality headphones that I should be aware of please let me know.