Sennheiser HD800 Certificate for Frequency Response Arrived
Sep 30, 2010 at 9:35 PM Post #226 of 746
mine, from the very first batch...
 
dsc0376edit.jpg
 
 
Jan 28, 2011 at 2:41 PM Post #228 of 746

Crazy how different the above graphs are.
Quote:
Here's mine, havn't had any problems with the bass and love the sound. Guess mine are pretty coloured compaired to the earlier models.
 



My graph looks a lot like yours and is in the 9000s (one of the newest) they are flatter but I have a sharper spike at 6 kz. Almost a 5 dB spike actually. Will post later. Mine has the 5dB boost at the 100hz too -which imo is not a bad thing for these headphones.
 
Jan 30, 2011 at 6:25 AM Post #229 of 746
I ask all of the above posters, how/where did you get yours? I registered my HD 800 phones @ Sennheiser, but I found no way to request my certificate.
 
Jan 31, 2011 at 12:16 PM Post #231 of 746


Quote:
Quote:
I ask all of the above posters, how/where did you get yours? I registered my HD 800 phones @ Sennheiser, but I found no way to request my certificate.



It was an option in the registration process for me..



Thanks! The only thing I could see during registration was a check box that said "request more info", so I checked it.
 
Jan 31, 2011 at 12:37 PM Post #232 of 746


Quote:
Quote:
Quote:
I ask all of the above posters, how/where did you get yours? I registered my HD 800 phones @ Sennheiser, but I found no way to request my certificate.



It was an option in the registration process for me..



Thanks! The only thing I could see during registration was a check box that said "request more info", so I checked it.


You can request the frequency response in this page: http://www.sennheiser.com/sennheiser/home_en.nsf/root/private_headphones_audiophile-headphones_500319?Open&row=freq
 
Feb 2, 2011 at 4:25 PM Post #233 of 746


Quote:
Quote:
Quote:
Quote:
I ask all of the above posters, how/where did you get yours? I registered my HD 800 phones @ Sennheiser, but I found no way to request my certificate.



It was an option in the registration process for me..



Thanks! The only thing I could see during registration was a check box that said "request more info", so I checked it.


You can request the frequency response in this page: http://www.sennheiser.com/sennheiser/home_en.nsf/root/private_headphones_audiophile-headphones_500319?Open&row=freq



Thank you Roger, that worked fine. I received an email indicating that a certificate would follow in a few weeks.
Thanks again,
 
John
 
May 24, 2011 at 4:20 AM Post #234 of 746
Hi!
 
I'm sorry if this was discussed before, but: Why there is only one single line in the graph?
After so much time Sennehiser says needs to produce the results, why they dont give us L & R channel response?
I measured my friends HD800 and the differences are up to 3dB in certain frequency regions.
 
Nothing terrible, but not identical either.
 
Still, what these graphs show is just 1 channel, or average of the two?
 
Don't understand this at all...
 
Thanks
Moonwalker
 
Aug 21, 2011 at 2:43 PM Post #235 of 746
To my ears, with a nice setup, I found the HD800's to have strong bass, beautiful sweet mid range and I did not really hear "the dreaded 6k peak."
 
I finally received my graph:
 

 
Aug 21, 2011 at 8:31 PM Post #236 of 746
The peaks on the first batches at 6.3k were much higher. You seem to have a bigger peak nearer 9k with yours.
 
Aug 21, 2011 at 8:59 PM Post #238 of 746
I am curious if the frequency fluctuation is engineered into the design (as in: "later vs earlier" versions) or if this is just the result of normal manufacturing variation.
 
Aug 21, 2011 at 9:00 PM Post #239 of 746
Whoops - double post...
 
Aug 27, 2011 at 9:58 AM Post #240 of 746
Not saying those peaks are completely unlistenable, but we should take the resolution of the graph into consideration as well, ie (in case I'm not using the correct English term), the space between two scale marks and what it represents.  Lower resolution graphs are evidently more 'faithful'.
 
In other words, the difference between the models is not as 'crazy' as someone noted above.  That's simply a misled perception.  The fact that it's very noticable on the graph has more to do with the accuracy and resolution of the graph rather than what you'll actually hear.
 
By the way, looking on LCD-2 graphs I could see differences of nearly 10dB between models.  Some may perceive it as ruler-flat curve, but that would be just because the resolution of the Y axis is so big, where each scale mark represents 20dB.  Likewise, you basically can make any curve look nearly flat if your resolution is big enough.
 
http://www.google.co.il/imgres?q=audeze+lcd-2+frequency&um=1&hl=iw&sa=N&tbm=isch&tbnid=hPVz7DoGIqXuuM:&imgrefurl=http://www.head-fi.org/t/560082/stax-sr-009-vs-audeze-lcd-2s-music-impressions/30&docid=kYrVrAzYg-PKHM&w=1651&h=1273&ei=Z_ZYTp_gL8Ph4QTH88WsBQ&zoom=1&iact=hc&vpx=361&vpy=105&dur=428&hovh=197&hovw=256&tx=145&ty=115&page=1&tbnh=161&tbnw=209&start=0&ndsp=12&ved=1t:429,r:1,s:0&biw=1024&bih=653
 
 

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