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**Hifiman HE-400 Impressions and Discussion Thread** - Page 528

post #7906 of 17947
Quote:
Originally Posted by Marleybob217 View Post

 

 

Come again?

 

HE-400 is almost perfectly linear until 20hz. 

Not really in practice. 

post #7907 of 17947

So as far as I can say Schiit Magni and Modi combo works great with HE-400. I Really do enjoy it.

 

Over FiiO E11 I got quite less background noise,little more overall clarity, dynamics and bass is bit better in terms I understand - impact and extension.

 

Change with HE-400 wasn't as dramatic as with HD650 but definitely noticeable.

 

Some pictures :

 

Best part : cutting box open

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Few hours later biggrin.gif

 

 

 

 

 

 

 

Have to admit that decent role in deciding what amp/dac to pick was look of this combo, it looks really lovely tongue.gif

post #7908 of 17947
Thread Starter 

Nice pics!! I gave this small stack a good listen a few weekends ago. I thought it was decent but it just really didn't wow me. I'll be firing up the Asgard 2 this week for a good comparative review. biggrin.gif

post #7909 of 17947

It looks better than it really is. D2000 is a headphone where the bass isn't overwhelming (in most cases, sometimes it is) but there's just something really right about its bass. In electronic music if there's a fast, aggressive bassline you can follow it and the D2000 is just sublime.

 

Raise the mids, lower the treble, and that headphone would be my perfect headphone.

post #7910 of 17947
Quote:
Originally Posted by jerg View Post

Not really in practice. 

Are you saying Tyll's measurements are off? :p

post #7911 of 17947
Quote:
Originally Posted by MattTCG View Post

Nice pics!! I gave this small stack a good listen a few weekends ago. I thought it was decent but it just really didn't wow me. I'll be firing up the Asgard 2 this week for a good comparative review. biggrin.gif

Woot woot :D

post #7912 of 17947
Quote:
Originally Posted by MattTCG View Post

Nice pics!! I gave this small stack a good listen a few weekends ago. I thought it was decent but it just really didn't wow me. I'll be firing up the Asgard 2 this week for a good comparative review. biggrin.gif

 

Thanks, yea I believe Bifrost + Lyr will make me "wow" more biggrin.gif but that will have to wait :) Looking forward on Asgard 2 comparison ;)

post #7913 of 17947
Quote:
Originally Posted by Marleybob217 View Post

Are you saying Tyll's measurements are off? :p

Yes and no, depending on how you interpret the measurements.

 

Anyway in practice, HE400 with unmodded pleathers start a gentle roll-off around 30 Hz, and a steep roll-off around 25 Hz. With velours the roll-off is a bit less steep but still very apparent.

 

In my opinion the sub-bass extension is a factor of the earpads and how they contact the headphone cups. You could probably push a few dBs more out of 20-25 Hz with a simple modification or two.


Edited by jerg - 2/25/13 at 12:47pm
post #7914 of 17947
Quote:
Originally Posted by jerg View Post

 

Anyway in practice, HE400 with unmodded pleathers start a gentle roll-off around 30 Hz, and a steep roll-off around 25 Hz. With velours the roll-off is a bit less steep but still very apparent.

 

Where are you seeing this?

 

The only measurements I've seen only have a very gentle, inaudible rolloff all the way into 10Hz.

post #7915 of 17947
Quote:
Originally Posted by chewy4 View Post

Where are you seeing this?

 

The only measurements I've seen only have a very gentle, inaudible rolloff all the way into 10Hz.

Again, in practice. 

post #7916 of 17947

Do real life listening yourself, don't just rely on the measurements.  For me, the HE-400's bass starts rolling off after 40hz-- very gently, to 30hz.  After 30hz it takes a nosefall.  The LCD2 I tested recently is good down to 30hz and rolls off after 30hz.  A machine might say they're flat to 20hz and below, but let your ears do the listening.  Headphones don't move enough air to give you the impact under 30hz that much, and whatever's heard in closed headphones or other basshead headphones under 30hz is usually harmonics and slow decaying bass.

post #7917 of 17947
Quote:
Originally Posted by TMRaven View Post

Do real life listening yourself, don't just rely on the measurements.  For me, the HE-400's bass starts rolling off after 40hz-- very gently, to 30hz.  After 30hz it takes a nosefall.  The LCD2 I tested recently is good down to 30hz and rolls off after 30hz.  A machine might say they're flat to 20hz and below, but let your ears do the listening.  Headphones don't move enough air to give you the impact under 30hz that much, and whatever's heard in closed headphones or other basshead headphones under 30hz is usually harmonics and slow decaying bass.

 

 

Quote:
Originally Posted by jerg View Post

Again, in practice. 

 

You guys don't seem to be very familiar with this:

 

 

A brief explanation of how to read it, the Y-axis is the level needed to reach the same loudness as 1kHz.

 

If there is a steep rolloff as you approach the inaudible frequencies, that means it's flat. If a pair of headphones had bass that sounded flat to the human ear, it would be unsafe to listen to


Edited by chewy4 - 2/25/13 at 1:08pm
post #7918 of 17947

We're not saying that they rolloff on an audible level, the both of us are far too seasoned to make that mistake.  We're saying they rolloff energy wise.  HE-400 can't quite put off as much pressure as the LCD2 at 30hz, as an example.  Square waves will confirm that as well. 

post #7919 of 17947
Quote:
Originally Posted by TMRaven View Post

Do real life listening yourself, don't just rely on the measurements.  For me, the HE-400's bass starts rolling off after 40hz-- very gently, to 30hz.  After 30hz it takes a nosefall.  The LCD2 I tested recently is good down to 30hz and rolls off after 30hz.  A machine might say they're flat to 20hz and below, but let your ears do the listening.  Headphones don't move enough air to give you the impact under 30hz that much, and whatever's heard in closed headphones or other basshead headphones under 30hz is usually harmonics and slow decaying bass.

You're supposed to hear less and less below 30hz. You can't even hear anything below 20hz...

post #7920 of 17947
Quote:
Originally Posted by TMRaven View Post

We're not saying that they rolloff on an audible level, the both of us are far too seasoned to make that mistake.  We're saying they rolloff energy wise.  HE-400 can't quite put off as much pressure as the LCD2 at 30hz, as an example.  Square waves will confirm that as well. 

Exactly; HE400 playing a 20 Hz tone just sounds like the diaphragm weakly flopping at 20 Hz with little to no air movement, a huge difference from its energy at 30 Hz or even at 25 Hz. I have a comparison target that is my HE500 with heavily modded earpads, and it is able to deliver consistent sub-bass energy down to about 22 Hz before a sharp drop in air movement.

 

 

 


Quote:
Originally Posted by Marleybob217 View Post

You're supposed to hear less and less below 30hz. You can't even hear anything below 20hz...

 

What you don't hear, you feel (assuming the energy is the same) around those frequencies. A 25 Hz tone or 20 Hz tone that has comparable energy to 30 Hz feel very different from those tones without energy.


Edited by jerg - 2/25/13 at 1:26pm
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