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Sennheiser HD800 Certificate for Frequency Response Arrived - Page 30

post #436 of 606

Obviously I know nothing, except to ask dumb-ass questions challenging the wisdom of my elders, never a good tactic, ask Socrates:  aren't the ETY's in-ear microphones?  If yes, may it be assumed that the 'profile' established for them will be valid for over the ear cans given that the sound path and the influence (reflections, absorption) of the outer ear will probably be different?

post #437 of 606

Diffuse field equalization was developed for circumaural headphones, but it is assumed that with the relative positioning of the transducer and the eardrum that canalphones that they would also resemble a diffuse field. As it relates to the graph, the graphs from Sennheiser are already compensated for the diffuse field spec, with third-octave averaging to make the graphs look flatter.

post #438 of 606
Quote:
Originally Posted by eantala View Post

HI WNBC I was just emailed my FR graph (guess they've gotten smart and trying to save onpostage) but I swear your headphone and mine could be be long lost twins!  

All experts, what do you make of the below what do you make of the below, in your experience is this a good example of the hd800?

It seems like the newer HD800, i.e. serial nos. >25xxx, more or less have a slight peak at 6kHz region.
I don't know how many hours for the "burn-in" period is, but I do recall that my previous HD800 with serial no. 19xxx have smoother treble than my current HD800 with serial no. 27xxx.
Hopefully after few houndred hours of usage, the treble will smoothen a bit
post #439 of 606
Quote:
Originally Posted by akhyar View Post


It seems like the newer HD800, i.e. serial nos. >25xxx, more or less have a slight peak at 6kHz region.
I don't know how many hours for the "burn-in" period is, but I do recall that my previous HD800 with serial no. 19xxx have smoother treble than my current HD800 with serial no. 27xxx.
Hopefully after few houndred hours of usage, the treble will smoothen a bit

yep, do you think this is just something that is changing over time randomly OR do you think Senn is actively moving in this direction intentionally.  Was just thinking they might be not be aiming for a completely flat FR response.  But rather creating what is in their minds an ideal FR curve.

 

Thus far in 3 weeks of ownership I only heard song that had a problem with sibilance (but I didn't get around to testing that song on other headphones to compare but I suspect it was the song itself).  I wish I could also borrow several pairs with graphs that greatly differ to see if I could hear a difference.  But I may not go for those either as it seems the ones that are flat at 6k also have a shelved down bass to match.

post #440 of 606

Got my FR graph yesterday. They took only one day after i registered my product. Mfg month is Nov 2013 and serial no is 27xxx.

 

post #441 of 606
^ how do you find out on the manufacturing month?
Mine is also 27xxx but my 6kHz peak is higher than yours
post #442 of 606
Quote:
Originally Posted by akhyar View Post

^ how do you find out on the manufacturing month?
Mine is also 27xxx but my 6kHz peak is higher than yours

There is a label mentioning Mfg month and imported month found in the outer box. Yes, I too wondering why 6kHz is lower than others. I don't have any treble spikes so far. How about you?

post #443 of 606
Quote:
Originally Posted by jerrick85 View Post
 

There is a label mentioning Mfg month and imported month found in the outer box. Yes, I too wondering why 6kHz is lower than others. I don't have any treble spikes so far. How about you?

 

Thanks. I'll check the outer box again as I don't think I ever saw the label.

Could be different markets have different label.

 

Mine is still running-in, so the treble is a bit harsh.

My ex-HD800 with ser no. 19xxx has much smoother treble

post #444 of 606

Check the top side of the box. It's the label that also mentions the price. 

post #445 of 606

Certificate? Like a physical piece of paper? How do you go about getting one of these?

post #446 of 606

Simply go onto the Sennheiser website and fill out the form that they have for registering the headphones at   http://reg.sennheiserusa.com/

post #447 of 606
Quote:
Originally Posted by roguegeek View Post

Certificate? Like a physical piece of paper? How do you go about getting one of these?

They will email you the .pdf attachment
post #448 of 606
Just curious, why can't they just include the FR graph with the HD800 when we buy them? It's just a image and won't take much space.
post #449 of 606
Quote:
Originally Posted by jerrick85 View Post

Just curious, why can't they just include the FR graph with the HD800 when we buy them? It's just a image and won't take much space.

To avoid people cherry picking the headphones with the best looking frequency graph..

post #450 of 606
Quote:
Originally Posted by Viper2005 View Post

To avoid people cherry picking the headphones with the best looking frequency graph..
But people may still abuse the return policy provided by some sites like after finding out their FR graph.
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