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

post #15316 of 20400

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 #15317 of 20400
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 #15318 of 20400
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 #15319 of 20400
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 #15320 of 20400
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 #15321 of 20400
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 #15322 of 20400
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 #15323 of 20400
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
post #15324 of 20400

:popcorn:

post #15325 of 20400
Quote:

Originally Posted by nicholars View Post
 

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... Sounds a bit "wrong" to me when just increasing the upper midrange, but you might prefer it because everyone hears differently.

 

 

At this stage all I am trying to do is to even out the entire frequency response so when I do a sweep in sinegen there are not any obvious dips/peaks. I am just starting with the 1kHz-4kHz area because I only have 10 bands to play with at a time. So I will be doing the whole range eventually. The aim is to get a totally flat sweep in sinegen. How this will actually sound at the end, I am not sure, maybe it will be a waste of time. I found the more I listen the more variations I hear. There is probably about 20 variations in the 1kHz-4kHz region. With this method, as I listen to sinegen I can move the EQ and it effects the output of sinegen in realtime so it makes it easier to even things out. My headphones seem to have quite a large dip in the 1.5kHz area that I found if I bump that portion it does improve a little bit, but bumping up other areas doesn't seem to help that much. There are also some imbalances around 2kHz where I can hear the sound drop off on one side and swap over from side to side. This only happens for very small range. I have been doing this for the past few hours and trialing the result while playing some music and its not sounding all that great so far. I get the feeling that EqualizerAPO doesn't do as good a job as Electri-Q so I will need to transfer the final result into that.

 

This is my current EQ settings below which is based on a slight modification of one of your treble EQ's that I am quite liking so far. The problem is that I tend to like things for a week or 2 and then not so much later. The HE400 is quite a roller coaster ride. At one stage I forgot to switch on the EQ and listened to it like that for a whole day and thought, gee I really like these EQ settings, they have a lot more treble sparkle. I might have to join you in the EQ mad house soon.

 

http://www.sendspace.com/file/7zu1wo

 

post #15326 of 20400

I found that if you try and EQ every tiny little bump or dip it just ends up sounding worse, best thing to do is  keep it as flat as possible but remove the big peaks / dips. The 2 main offenders are 7.5khz and 12.5khz for the treble and also a small one at 5khz.... I found it works quite well to have a curve so everything from approx 200hz-3000hz is higher than everything else above that, this makes the lower mids sound thicker and also raises the 1000-3000 area relative to everything else, but depends what result you are trying to get.


Edited by nicholars - 12/18/13 at 10:00pm
post #15327 of 20400

This is what I mean (ignore the bass area I deleted that point)... Small curve on the midrange and everything else lower.

 

post #15328 of 20400
Quote:
Originally Posted by nicholars View Post
 

I found that if you try and EQ every tiny little bump or dip it just ends up sounding worse, best thing to do is  keep it as flat as possible but remove the big peaks / dips. The 2 main offenders are 7.5khz and 12.5khz for the treble and also a small one at 5khz.... I found it works quite well to have a curve so everything from approx 200hz-3000hz is higher than everything else above that, this makes the lower mids sound thicker and also raises the 1000-3000 area relative to everything else, but depends what result you are trying to get...

how didja find that the peaks were at 7.5khz & 12.5khz exactly?

post #15329 of 20400
Quote:
Originally Posted by money4me247 View Post
 

how didja find that the peaks were at 7.5khz & 12.5khz exactly?

 

Program called Sinegen.

post #15330 of 20400
Quote:
Originally Posted by nicholars View Post
 

Program called Sinegen.

but the program is on your computer right? how would it know what frequency response the he400 is outputting?

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