X2, positional sound is better on them. The he-400 sound's more "open" but their sound cues are not ideal for gaming (not accurate, back sound isn't poitraited accurately).

Hi, I'm sorry I forgot to mention it, I'm using  the Asus xonar essence STX II. All of my music is mp3 320 kbps or FLAC.

Hi everybody, right now I've both these headphones and I wanted to make  a simple comparison in case someone is still trying to decide which one  is better for his needs. At the moment I've owned the X2 for only 2 days so  bare in mind that I'll come back to post some updates if I thing that ...

Thank you for your advice, I'll write a little comparison with the HE 400 when I get them.

  Really I just wanted some more feedback, I already searched all this thread before (read also all the review on this site). Some seam to imply that it is very detailed while other people say that even if they are detailed they are smooth and non fatiguing. The mid-range seems forward for...

Hey guys, could you explain to me everything about their detail and soundstage quality? What I'm interested in is what detail you can actually hear from male and female vocals, instrumental detail, if they can keep up with fast songs. How they compare with similar priced headphones in this...

I wanted to thank all the guys that told me to keep listening to the HE 400. I probably need some time to get use to the sound of new headphones.    -The vocals are much less intimate than the ones on the Senn HD 598, sometimes they even have less extension but overall have a better clarity...

Foobar can't open file with those extension. If I should open it with electri-q I have two problems, the plugin for foobar every time I try to load a preset it just crushes and I can't use the actual program for some reason because every time I open it, it starts sending current to the headphone...

I just bought this headphones and I'm trying them since yesterday (I already got something like 18 hours of listening). This were supposed to be an upgrade from the Sennheiser HD 598. Everybody in the reviews wrote that this are warm and have awesome bass but I'm listening to exactly the...

bump

The He-400 seems good but there are many revision, is there any thread that explain how to distinguish them? Any kind owner of the HE 400 that can tell me how my songs sound on these headphones?

Hi, I currently own a pair of Sennheiser HD598 and I wanted to find something that can make me stop looking for more. The Sennheiser are great but are not enough for what I'm looking for. These are the features I want to upgrade: Better definition and clarity Better imaging and instrument...

Hi guys, I'm looking for some HP on the 400$ price range (or less), They should have nice bass (I'm not a bass-head) with good extension, detailed mids, good instrument separation, no sibilant highs nor rolled off and good soundstage. I'll use my Asus Xonar Essence STX as amp. They need to...

I tried my HD 598 on my Netbook (asus 1015pn) and the vocals were still not sharp as you should expect from this cans and with some songs I noticed a lot of distorsion (e.g: My Dads Gone Crazy - Eminem) With the Nexus using "powerAMP" the vocals are good, the sound stage is acceptable, overall...

Yes, but the sound didn't change.