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Sennheiser HD800 Certificate for Frequency Response Arrived - Page 20

post #286 of 582

Got mine today. Sorry for the bad quality.

 

1335785882643.jpg

post #287 of 582

HD800FR.jpg

post #288 of 582

Interesting how the later ones seem to have a bass boost compared to the very flat response of the early ones.....

post #289 of 582

 

Quote:
Originally Posted by John Willett View Post

Interesting how the later ones seem to have a bass boost compared to the very flat response of the early ones.....

 

Here's mine again....S/N 4XXX. About the same bass boost.

 

HD800 FR Graph.jpg

post #290 of 582

Just got this today:

 

HD 800 graph.jpg

 

I think I may soon be applying some EQ to reduce the peak at ~10k.


Edited by Windsor - 5/4/12 at 10:35am
post #291 of 582

Just out of interest, does anyone know what the earliest models (S/N's) of the HD 800 with the 'resolved' treble issues (which head-fiers have been posting about) are?


Edited by Windsor - 5/21/12 at 2:18pm
post #292 of 582
Quote:
Originally Posted by Windsor View Post

Just out of interest, does anyone know what the earliest models (S/N's) of the HD 800 with the 'resolved' treble issues (which head-fiers have been posting about) are?

 

Seems about 1000ish. Everything after that seems to be pretty similar.

post #293 of 582

I'm not sure how my graph (#595) fits into the general pattern:

 

Flat.jpg

 

The graphs so far have a strong general tendency toward flatness, without any evidence of peakiness. The idea of Sennheiser providing this info is to show that their Loudness Diffuse Field is substantially flat. I have a feeling that, if a headphone exhibited strong peaks or troughs, they wouldn't pass inspection. 

post #294 of 582
Quote:
Originally Posted by poikkeus View Post

I'm not sure how my graph (#595) fits into the general pattern:

 

Flat.jpg

 

The graphs so far have a strong general tendency toward flatness, without any evidence of peakiness. The idea of Sennheiser providing this info is to show that their Loudness Diffuse Field is substantially flat. I have a feeling that, if a headphone exhibited strong peaks or troughs, they wouldn't pass inspection. 

 

That looks pretty flat to me. Enjoy! :-)

post #295 of 582

I got mine today. Serial number 6XX

img1841k.jpg

post #296 of 582

how can I get the frequency certificate for my hd800s?

post #297 of 582
Quote:
Originally Posted by SONIC BOOM View Post

how can I get the frequency certificate for my hd800s?

 

Here's the link for registering on the US site: http://www.sennheiserusa.com/serviceandsupport_register

post #298 of 582

You have to register your HD800 and you have an option for a frequency chart there.

 

edit: it seems someone beat me to it

post #299 of 582

thanks smily_headphones1.gif

post #300 of 582

Mine just landed in the mail today,

 

Sennheiser HD 800 certificate.jpg

 

I'm going to try the Anax mod soon to see if it's more pleasing than using a parametric eq. Though I've honestly never had any major issues with the upper treble emphasis.

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