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HifiMAN HE-6 Planar Magnetic Headphone - Page 713

post #10681 of 19433
Quote:
Originally Posted by hawkhead View Post
 

 

 

You might wanna skim through the last 10 pages of the Jergpad thread to really understand what my thought process behind the felt mod is. (someone aptly called it the "Fuzzer" mod, a portmanteau of Fuzzy felt, and Audeze's Fazor technology; I quite like that name, might make an official thread about this mod in the near future).

 

http://www.head-fi.org/t/646812/hifiman-he500-he400-jergpad-mod-v2-5-modulor-orders-updated-november/1170

post #10682 of 19433
Quote:
Originally Posted by ohhgourami View Post
 

I don't really want to type all this up...but for the sake of science...

 

+

 

 

Line the magnets of the driver with adhesive felt (Creatology sticky felt from Michael's) then pop open the grill in the back, and take out the cotton and foam pad.

 

The felt is supposed to absorb reflections that come off the ear to minimize destructive and constructive interference. Without removing the cotton and foam in the back, I got slightly forwarded mids, but a dip in the treble. Also felt soundstage got smaller. So one tiny improvement, but two big negatives. I had given up on this point. This ruined female vocals - 阿娇's sweet voice sounded dull. Then Armaegis pointed out removing the rear grill added a ton of airiness and gave better upper mids.  hmmmm

 

So I tore off all the felt lined on the driver, then removed the cotton in the back. BOOM! So much air! Pushed the highs a bit too far for my liking - too light. But it did push the mids forward a bit too.

 

Now what if I combined both?! Best of both worlds really. The mids are right up front, soundstage is larger than what I began with, treble hasn't changed (maybe got better too), and bass seems to go deeper with more tightness. Overall, the overall tonality of the HE-6 has not changed, simply positions have shifted - for the better.

 

The HE-6 was already damn close to perfect, but this has made it much closer especially with the addition of Audeze "Vegan" pads.

 

All credit goes to jerg though! He is the one to post on his mod (or was it purrin?)! Also a big thanks to Armaegis for getting me to open up the rear grill so I can give this mod another try!

I think the "felt on the grill"-mod really makes sense! Thanks for posting it. I will certainly try it and see what it does. I have used a circle of felt and it also dampens the treble.

 

The thicker the felt, the more treble it will absorb I guess, so from your initial try-out I will get some relatively thin felt (or perhaps velour) and double sided tape and do it ASAP.

 

Also a little warning to fellow HE-6 users: Don't use selfadhesive felt made for under chairs etc. since the glue/tape will most likely be a pain to remove afterwards (especially after a longer time).

post #10683 of 19433
Quote:
Originally Posted by LarsHP View Post
 

I think the "felt on the grill"-mod really makes sense! Thanks for posting it. I will certainly try it and see what it does. I have used a circle of felt and it also dampens the treble.

 

The thicker the felt, the more treble it will absorb I guess, so from your initial try-out I will get some relatively thin felt (or perhaps velour) and double sided tape and do it ASAP.

 

Also a little warning to fellow HE-6 users: Don't use selfadhesive felt made for under chairs etc. since the glue/tape will most likely be a pain to remove afterwards (especially after a longer time).

I'm writing up the guide for this mod at the moment (still WIP, will be making a diagram plus photos as well as detailed procedure instructions)

 

http://www.head-fi.org/t/692494/hifiman-fuzzor-mod-driver-backwave-felt-damping-modification

post #10684 of 19433
Thanks for all the work you and the others have put into this
This is what I need when ready.
Al D
post #10685 of 19433
Quote:
Originally Posted by ALRAINBOW View Post

Thanks for all the work you and the others have put into this
This is what I need when ready.
Al D

Yep, thanks Jerg for keeping tabs on the HE-6 thread. Much appreciated :)

post #10686 of 19433

Yesterday evening I did the "felt-on-grill" mod (on the ear side only). I also covered the long vertical metal-pin with felt, since this is in the middle of the driver and exactly in front of the ear. Kept HE-6 stock otherwise, with pleather pads.

 

This felt mod does tame the upper frequencies as I wanted. For some reason I also feel the general tonality has been tilted a bit - or at least I think I hear more bass ... which doesn't really make sense if it isn't a general tilt of the frequency response. I think depth and holographic imaging is better defined, but sounds seem to bee closer. The sound is more rounded, "analog"?, and voices sounds more natural.

 

When I checked with sine wave tones I still heard a bump in the treble centered around 8-9kHz, so even this mod do bring the treble down generally, the result is still giving me a little extra around 8-9kHz. This could be desireable, however, as I have seen and read that many headphones are tuned in order to have a bump there.

 

 

I think - with this mod - there are no downsides, as long as the felt pieces are in line with or slimmer than the metal grill it is covering. I found that 4mm is slightly too wide: 3.5mm is more accurate. 3mm is too slim.

 

I really think this mod makes the HE-6 a better headphone. It could be VERY interesting to see a waterfall plot of HE-6 stock versus with this mod.

 

To me HE-6 now has a close to optimal frequency response. Don't need other headphones ;-)


Edited by LarsHP - 12/1/13 at 9:35am
post #10687 of 19433
Have you tried removing the rear grill along with the cotton?
post #10688 of 19433
Please post or pm pics and the type of felt used . Where purchased , brand and style . This is just what I wanted . It's funny those Are the only cans that effect me that way. At lower volumes they are fine , but if you want to kick it up to really hear all the details , when done it's like my ears are smoking a bit. But boy it is good though .

Thanks for posting

Al D
post #10689 of 19433

@LarsHP In regards to the 8-9khz bump - that is most likely a resonant frequency inside your ear, it is very common. If you find that it bugs you, you can EQ it down just a little.

post #10690 of 19433
I use EQ. But for me I would rather get the cans set correctly . Eq works but it does have negative effects on some songs and becomes a game to find a happy medium to,listen to.


Al D
post #10691 of 19433
Quote:
Originally Posted by brunk View Post
 

@LarsHP In regards to the 8-9khz bump - that is most likely a resonant frequency inside your ear, it is very common. If you find that it bugs you, you can EQ it down just a little.

This could actually imply that HE-6 now measures almost ruler flat!
I don't hear it as a bump when listening to music - only when testing with sine wave tones, so I don't expect I need to EQ it. Thanks for the tip though.

post #10692 of 19433
Quote:
Originally Posted by LarsHP View Post
 

I think the "felt on the grill"-mod really makes sense! Thanks for posting it. I will certainly try it and see what it does. I have used a circle of felt and it also dampens the treble.

 

The thicker the felt, the more treble it will absorb I guess, so from your initial try-out I will get some relatively thin felt (or perhaps velour) and double sided tape and do it ASAP.

 

Also a little warning to fellow HE-6 users: Don't use selfadhesive felt made for under chairs etc. since the glue/tape will most likely be a pain to remove afterwards (especially after a longer time).

 

If not using selfadhesive felt made for under chairs, etc. (the only felt that I know :) ), which one would you use?

post #10693 of 19433
Quote:
Originally Posted by LarsHP View Post
 

This could actually imply that HE-6 now measures almost ruler flat!
I don't hear it as a bump when listening to music - only when testing with sine wave tones, so I don't expect I need to EQ it. Thanks for the tip though.

Yep, no problem! Yeah the HE-6 is one of the most linear headphones out there, so that's a safe assumption. :beerchug:

post #10694 of 19433
Quote:
Originally Posted by ALRAINBOW View Post

Please post or pm pics and the type of felt used . Where purchased , brand and style . This is just what I wanted . It's funny those Are the only cans that effect me that way. At lower volumes they are fine , but if you want to kick it up to really hear all the details , when done it's like my ears are smoking a bit. But boy it is good though .

Thanks for posting

Al D


Hmmm. Not sure if it will help you, I bought it in Norway:

Felt: http://www.pandurohobby.no/Catalogue/40-Sy-Strikk/4050-Ull-Filt/405025-Filt/1/100094-Glitrende-hobbyfilt-Sort

Double sided tape ("Shark Tape"): http://www.pandurohobby.no/Catalogue/30-Papir-Stempler/3040-Tilbehor/304020-Festemateriale/1/680097-Dobbeltsidig-tape-19-mm-18-m

 

The felt is about 1mm think. Double-sided tape is very thin and has a white paper you peel off before mounting.

 

(Click to enlarge)

 

My felt-on-grill modification looks as the picures posted above except I also covered the round pin in the middle with felt, so I don't plan uploading mine too.

post #10695 of 19433
Lmao. Norway. I keep forgetting we are all over the world on here. Well ordering online will fix that issue fast.

And a big thanks for your post,s . As I do read and appreciate all of this , putting it all in a neat post like this makes the experiment or mod soooo much easier .

Thanks
Al D
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