The Amperiors are great headphones. Tyll even put them up on his wall of fame and gave them a great review:
Now putting that aside and comparing how they measure objectively, for 1/4ish the price, you get better headphones:
Notice the more even FR response, less distortion in the bass (and this is comparing a $350 ON-EAR headphone to a FULL SIZED headphone that costs $1200). Look at the Impulse Response too...those drivers on the D7100s just don't seem to want to simmer down. Throw it all together and you have one incoherent headphone that sounds muddy, slow and just bad. And Denon put an MSRP on them of $1200?
Please no one take my comments as gospel, please go hear them for yourselves. If you like'em, then great. But I wouldn't pay $200 for them personally.
Edited by MacedonianHero - 4/14/13 at 8:42am