I have both Denon AH7000, 5000, and the Beyerdynamic T1. The T5 is supposed to sound like the T1. First it is not a closed headphone like the Denon. Not really entirely open either, in between. The Beyermeyer is a far more sophisticated and detailed headphone, the sound field is bigger but with smaller instruments a little further away. tremendously detailed. Given the right inputs, it is an audiophile headphone. The Denon technically is not hard to drive, but in realit is. If not driven with a lot of power it's balance shifts way over to the bass and you can hardly here the high frequent. This can be kidda cool with rock, not so much jazz, classical, world, etc. I finally mated my Denon's with a Violectric 180 amp from Lake People in Germany and it sounds great. So if you like bass Dennon, but if they don't sound right you'll need to amplify well. JDFlood