Originally Posted by DairyProduce
What are the sound differences between HE-4 and HE-400? I read somewhere here that the HE-400 was considered an upgrade?
No. The HE400 and HE-4 are different, and I still consider the HE-4 superior in most aspects. More air and detail, more balanced, and more refined. The problem with the HE-4 is that it's very hard to drive. The HE400 is considerably darker, and more musical. The HE-4 is bright, but the treble isn't as glaring as the HE400. The HE400 has that mixture of darkness and strong treble, that sticks out a bit. The HE-4 has sparkly treble, but due to the cleaner tone, it's not abrupt and jarring like the HE400 can be.
Keep in mind, I had reacquired the HE-4 recently prior to getting the HE400 again, and it's all fresh in my mind.
The reason I prefer the HE400, is because it has more bass presence, and a more intimate tone.
The HE400 has more in common with the HD650, whereas the HE-4 has more in common with the DT880. Really, the HE-4 = planar DT880.
If you want more balance, more comfort, the HE-4 is better than the HE400. You just have to have a very strong amp to get them to sing, unlike the HE400 which sounds great off anything.
The HE-4 is still more expensive than the HE-400 too. I believe it's for a reason. They are both stellar and different enough to warrant having both if someone wanted to different sounds out of the same hifiman signature. Two sides of the same coin.Edited by Mad Lust Envy - 11/24/12 at 6:25pm