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**Hifiman HE-400 Impressions and Discussion Thread** - Page 1022

post #15316 of 17995
Quote:
Originally Posted by DoctaCosmos View Post
 

http://youtu.be/j77VKw9Kx6U this is pretty good stuff.  raven 37 minutes in he shows distortion through waterfall plot.  yes he's showing a speaker but the concept is the same

...lool. i can think of hundreds of better ways to spend an hour than watching that vid. like listening to music & getting drunk =P 2min in I was already bored.

post #15317 of 17995

and what is resonance

Another type of temporal distortion is resonance. This one is critical. Let's call it time dilation because it stretches the signal out for a longer duration than in the recording, in other words, lengthening the decay, or ringing. Stored energy that is not dissipated as heat is reradiated as unwanted sound. Drivers with poor damping and cabinets that don't completely absorb or block the internal vibrations of the enclosure radiate delayed acoustic energy into the room. This is a major contributor to the perception of, “It doesn't sound live; it sounds like speakers.” It is measured by the cumulative spectral decay, CSD.

post #15318 of 17995

Yes, resonance.  A far cry from imd.

post #15319 of 17995

@Money to some it is interesting.

post #15320 of 17995
Quote:
Originally Posted by money4me247 View Post

lol!!! sheddding season now that winter is almost over?

aamzing how sensitive & detailed the HE400s are hahah
I'm listening to the Pink Floyd album dark side of the moon, and can't get enough of this album through the he-400's! I'm extremely impressed also with the micro details that my hd650's don't reveal. Totally impressive!
post #15321 of 17995
Quote:
Originally Posted by DoctaCosmos View Post
 

@Money to some it is interesting.

wld b more interesting if it wasn't an hour & he didn't speak w/ a silly fake wanna-be sophisticated british accent ;) heh

 

high-yield me bro.

post #15322 of 17995

lol he was born in england and resides there.  he is a very prestigious individual

post #15323 of 17995

Well, I had no idea that you could derive frequency response from impulse responses, which is pretty interesting.

 

Then at the end, "measurements lie" and, "if you don't like the speaker [everyone else was wrong about it because you and only you are hearing a problem]".

 

So after all the ingenious measurement approaches, the guy is willing to say they don't really matter. He should do one on global warming then as well. lol.

post #15324 of 17995
Quote:
Originally Posted by DoctaCosmos View Post
 

and what is resonance

Another type of temporal distortion is resonance. This one is critical. Let's call it time dilation

 

This is some Pseudo-Headphone ****. I came here to talk about headphones not time machines. :popcorn:

post #15325 of 17995
Quote:
Originally Posted by spiderking31 View Post


I'm listening to the Pink Floyd album dark side of the moon, and can't get enough of this album through the he-400's! I'm extremely impressed also with the micro details that my hd650's don't reveal. Totally impressive!

The low end extension... I needed new pants. So much lower than the DT990's. I think it's a great album to showcase the HE-400. The Vocals don't necessarily fall into it's slight recession in the mids. It's a great album for them.

post #15326 of 17995
Quote:
Originally Posted by Mdraluck23 View Post

This is some Pseudo-Headphone ****. I came here to talk about headphones not time machines. :popcorn:

whattt? you never traveled back in time using your headphones? obviously, notta true audiophileee. =P

 

edit: upgrade your dac/amp set-up & get some silver cables bro, and you'll experience some dope time dilation.

post #15327 of 17995
Quote:
Originally Posted by money4me247 View Post
 

...lool. i can think of hundreds of better ways to spend an hour than watching that vid. like listening to music & getting drunk =P 2min in I was already bored.

It was actually really interesting. Recommend. 

post #15328 of 17995
Quote:
Originally Posted by Mdraluck23 View Post

The low end extension... I needed new pants. So much lower than the DT990's. I think it's a great album to showcase the HE-400. The Vocals don't necessarily fall into it's slight recession in the mids. It's a great album for them.
I can't agree more! It's my favorite album for the he-400. Very impressive! smily_headphones1.gif
post #15329 of 17995
Quote:
Originally Posted by mlxx View Post
 

 

I had the same issue with driver touching the ears with it removed.. but doesn't putting the spacer back cover the holes cut out and defeat the purpose?  As yet I haven't done this mod but want to do it soon, still not convinced it will help the he400. What they should do is have spacers made of the same foam material that is inside the pads.

 

On another matter.. managed to get this working with sinegen. Its possible to use sinegen and EQ in realtime to get the FR even. It has only 10 bands but the are settable to any frequency, at this stage I have been working on the 1kHz-4kHz area. You can use the slider in sinegen to sweep and then adjust the EQ and then retest and adjust again. There are so many variations in the FR its still not that easy though. Must be some kind of microphone setup that can do this automatically.

 

 

I found it better to make a slight curve on the midrange and then lower the treble, (instead of increasing the midrange) it is up to you but try both, personally I preferred it when the treble is lowered and the midrange has a slight curve on it, it has a similar effect of increasing the upper midrange and lowering the treble. I just found it is better to lower frequencies around the area you want to be increased instead...

Edited by nicholars - 12/18/13 at 8:21pm
post #15330 of 17995
Quote:
Originally Posted by DoctaCosmos View Post
 

you don't understand how amplifying a planar magnetic headphone works and are making yourself sound like an idiot. 

 

If that was aimed at me.... I would say it is the other way around to be completely honest. I have used high quality NAD and Marantz stereo amplifiers with good headphone jacks with various headphones and even the cheap Xonar STX headphone amp works better most of the time.... Stereo amps are usually better out of the headphone jack compared to AV receivers.

 

As I already said your AV receiver is expensive and may be decent with headphones, but it is not exactly an optimal recommendation for a well priced headphone amplifier is it.... Basically all you are trying to do is confirm your AV receiver as being a good headphone amplifier, you are not trying to help anyone to find a good amplifier for the HE400, so your posts are pointless....

 

Why are you recommending a £700 AV receiver as a headphone amplifier? Because you want to prove that it is as good as a dedicated headphone amplifier? ... If this is what you want to do, then go and buy one and compare it yourself, instead of making misleading / pointless comments... Obviously a £200-£300 headphone amp or probably a £150 emotiva mini X is a far better option for a headphone amplifier than a £700 AV receiver. Probably a cheap Schiit / 02 / Xonar STX works as well or better than a £700 AV receiver for HE400.... Unless you are using headphones that need a lot of power and you connect them up to the speaker taps... But again this has nothing to do with the HE400.


Edited by nicholars - 12/18/13 at 8:22pm
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