I think that's called soundstage 
Seems like you may have gotten a dud. Call them about the problem.
I think that's called soundstage 
Seems like you may have gotten a dud. Call them about the problem.
Let your brain adjust first. Listen to them for a while. Dont switch headphones. After a while you will get used to their signature.
Lets hope he is simply getting used to them


The problem I see here is that people tend to think the more open sound, the better... I do not see it this way. I have owned and heard pretty both pretty open or closed cans and do also prefer rather closed kind of sound. For spatial interpretation, I have TB Isone to do that for me... It works much better than just having emphasised soundstage.
Also, you need to understand that people here are going to tell you that headphones X are completely destroyed in their performance by headphones Y. But in reality, the difference between 100USD and 1000USD is nowhere near exaggerated opinions of the majority of head-fiers here.
You should definitely not try to expect OUT OF THIS WORLD experience with any pair of headphones... Try to give the HE-400 a bit of time but if you are not going to like them after two days or so, look at the FR graph of all the headphones you have and compare them to find out what exactly do not like about them. It's not difficult to understand it... You can find the ideal pair for you then :-)


Going from exclusively closed headphones to an open headphone is like being in darkness for all your life and then suddenly stepping out into sunlight, your eyes will hurt for a while but then everything becomes clear.

The problem I see here is that people tend to think the more open sound, the better... I do not see it this way. I have owned and heard pretty both pretty open or closed cans and do also prefer rather closed kind of sound. For spatial interpretation, I have TB Isone to do that for me... It works much better than just having emphasised soundstage.
Also, you need to understand that people here are going to tell you that headphones X are completely destroyed in their performance by headphones Y. But in reality, the difference between 100USD and 1000USD is nowhere near exaggerated opinions of the majority of head-fiers here.
You should definitely not try to expect OUT OF THIS WORLD experience with any pair of headphones... Try to give the HE-400 a bit of time but if you are not going to like them after two days or so, look at the FR graph of all the headphones you have and compare them to find out what exactly do not like about them. It's not difficult to understand it... You can find the ideal pair for you then :-)
Dude, go make your own thread about FR interpretation, don't come taint this thread with this. You've already been warned by 3 Head-Fi admins about it.
LOL, I have only advised him what to do if he finds something wrong about the sound of his headphones... Don't you want to tell me then if HD600 measure significantly worse in terms of bass FR in comparison to D5000 that the bass amount is going to be the same in reality, do you?
You are free to report my post to admins...

LOL, I have only advised him what to do if he finds something wrong about the sound of his headphones... Don't you want to tell me then if HD600 measure significantly worse in terms of bass FR in comparison to D5000 that the bass amount is going to be the same in reality, do you?
You are free to report my post to admins...
It just seems everywhere you post, you leave behind a trail of misguidance. For instance, everyone in this thread has HE400 except you, guess who has a better idea of how they sound?
Sure there is fanboyism everywhere and that is just as bad, I understand HE400 is not perfect. But it also excels in aspects that you will NEVER, EVER be able to extract from simple measurements.
As for report action, if you go to every "xxx headphone discussion thread" and praise / desecrate those headphones based on your simplistic interpretation of IF graphs, there will be plenty of flags on your head. That is why the admins in the Flagship thread are telling you to make your own thread to centralize what it is you are so desperately trying to tell others about. If you aren't brave enough to do that, then there is no cure.

LOL, I have only advised him what to do if he finds something wrong about the sound of his headphones... Don't you want to tell me then if HD600 measure significantly worse in terms of bass FR in comparison to D5000 that the bass amount is going to be the same in reality, do you?
You are free to report my post to admins...
Come on though. As Jerg said, coming from a closed can, it really isnt easy to adjust.
But when you adjust, everything just gets better.
Its like drinking grape juice after coca cola. You will adjust to it after a while.
Hmm that is a good interpretation :)
I haven't said anything against HE-400... Just that if he finds anything wrong with them, he should try to figure out what's wrong in fact in order to avoid disappointment in the future.
Well neither did I in reference to your post :)
Helpful to who who exactly? Just trying to understand your contribution to this thread.
hi all, I'm new to this forum, I've spent many years at AK. I just got some HE400's and they remind me of some vintage speakers I have, my Infinity Kappa 8's. The highs are what I call liquid, the detail is there but they aren't hurt my teeth highs like metal tweeters tend to do. I am still not sure what to think of these but I can clearly hear the refinement over the ath-m50's. I'm a bass player and am into prog rock and music with intense drums and bass so that's what I'll be checking for most. I don't have a hp amp at the moment, I am playing through a Fisher 500c, sansui au-9500 or sansui au-d11ii. I think the bass is a tad mushy with the fisher amp, these seem to draw the same amount of current as house speakers.
DT990 treble is really well behaved. Pro900 is.. a lol.
Purrin's CSD graphs of the two are complete opposites.