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Want more bass from your HD 800? – Easy mod - Page 4

post #46 of 85

JaZZ was kind enough to do this mod on my HD800. It really helped to get rid of unwanted brightness and elevated the bass.

post #47 of 85

How to take the cover off, to do the mod? Is it easy or difficult, could I break it if not carefull?

 

I haven't totally decided on getting these yet because of the lack of bass impact, I have the Denon D2000 and really like the impact on action movies and subwoofer music.

 

How much bass impact does it increase to after the mod? Anything like Denon?

 

But I really want that IMAX out of your head experience, but with BASS.


Edited by HDMan - 7/29/10 at 3:27am
post #48 of 85


 

Quote:
Originally Posted by HDMan View Post

How to take the cover off, to do the mod? Is it easy or difficult, could I break it if not carefull?

 


IIRC, one can just pull them from under the pads and stuff the borders back there when finished.

 

 

Quote:

Originally Posted by HDMan View Post


How much bass impact does it increase to after the mod? Anything like Denon?

 

But I really want that IMAX out of your head experience, but with BASS.

 

They are no bass monsters even after the mod. I have some older Pop records without deep bass which still sound  unacceptable, IMO; the HD800 are unforgiving in that department. I have to use the PS-1 for this recordings.

With recordings with deep bass however they sound pretty impressive. With such recordings I like them more than any other can, atm.

post #49 of 85
Quote:
Originally Posted by HDMan View Post

How to take the cover off, to do the mod? Is it easy or difficult, could I break it if not carefull?

 

I haven't totally decided on getting these yet because of the lack of bass impact, I have the Denon D2000 and really like the impact on action movies and subwoofer music.

 

How much bass impact does it increase to after the mod? Anything like Denon?

 

But I really want that IMAX out of your head experience, but with BASS.


With the D2000, you're used to the headphones adding bass to everything. Unless you learn to enjoy an accurate bass response, the HD800 won't suit your preferences.

post #50 of 85

Accurate is better for sure, sick of the muffled bass on the Denon's.

post #51 of 85

Hi JaZZ!

 

Thanks for sharing! 

 

Have I understood you right: You only use velvet/layers of velvet and adhesives - and no melamine foam?

post #52 of 85
Quote:
Originally Posted by JaZZ View Post

Now here's the latest implementation of my mod – the definitive one.

LL

In short: A velvet ring on the pole piece surrounding the membrane and three layers of velvet on the bare frame part at the back – with carpet tape underneath/in between to hold them in shape and together.

Maybe the absorber ring doesn't look too beautiful, but it has to be made of velvet to sound like it should. The triple velvet absorber on the back makes the sound even slightly more accurate and lacks the hinted boominess of the Melamine foam. Covering the steel mesh isn't necessary at all anymore – there's all the bass I need without it now. I'm completely satisfied with the sonic result.
.

 

Hi JaZZ

 

Thanks for sharing! Is my understanding correct in that this "final" mod is without the melamine foam? Only velvet; thick or thin? - And what is "carpet tape"-will any double-sided tape do? - or is there a special type? Thanks, anyway!
 


Edited by ardilla - 9/1/10 at 3:20pm
post #53 of 85

525x525px-LL-f81033cb_vbattach27529.jpg

 

Why does that look more like a cornea transplant to me?

post #54 of 85
Quote:
Originally Posted by HeadphoneAddict View Post

525x525px-LL-f81033cb_vbattach27529.jpg

 

Why does that look more like a cornea transplant to me?


lol, it does look like an eye doesn't it?


Edited by Shahrose - 9/1/10 at 1:37pm
post #55 of 85
Quote:
Originally Posted by Kurt View Post

JaZZ was kind enough to do this mod on my HD800. It really helped to get rid of unwanted brightness and elevated the bass.


Hi Kurt! Does that mean that your HD800 is not "looking for a new home" as is stated in your signature?

post #56 of 85
Quote:
Originally Posted by ardilla View Post

Hi Kurt! Does that mean that your HD800 is not "looking for a new home" as is stated in your signature?


Not quite. The mod elevated bass as a whole. The strange midbass dip is still there. That, and I just could not get used to the sound of the HD800. A matter of taste; I guess.

post #57 of 85
Thread Starter 

 

Originally Posted by ardilla View Post

Is my understanding correct in that this "final" mod is without the melamine foam? Only velvet; thick or thin? – And what is "carpet tape" – will any double-sided tape do? – Or is there a special type?


Correct. Just velvet (1-2 mm thick) and double-sided adhesive tape. I have found out that the damping mod sounds better with the velvet than with the Melamine foam. The downside is that it's more laborious and prone to fray, but that's just a cosmetic problem: The double-sided adhesive tape (carpet tape is one with particularly strong adhesive) holds the velvet in shape and prevents it from losing fibers. Additionally I use a double-sided adhesive tape with less strong adhesive underneath the carpet tape to facilitate reversibility. Now if you have a strong one-sided adhesive tape for holding the velvet fibers together at your disposal, you could use it, but you have to use another double-sided adhesive tape for fixing the velvet layers on the earpiece anyway.

 

Alternatively I have covered the pictured frame bar with three layers of velvet, but somehow the two-layer version sounded better to me.  

 

HD-800-Mod (6) (kompr).JPG

As you can see (when comparing with earlier posts) I've gone back to the roots to a small degree – in that there's a small piece of velvet on the steel mesh again, making for a slight additional bass increase. It has proven of value in combination with the new Silver Dragon headphone cable. It serves for minimally isolating front and back sound waves against phase cancellation. You can cover as much of the steel mesh as you like, depending on the desired bass increase. But I guess at a certain point accuracy and transient response will begin to suffer.

.


Edited by JaZZ - 9/3/10 at 12:29pm
post #58 of 85
Quote:
Originally Posted by The Monkey View Post

Quote:
Originally Posted by SteveM324 View Post
What is a SPC cable? I never heard this term before.
Silver Plated Copper.

Quote:
Originally Posted by MrGreen View Post
(Sorry if I seem to be ridiculing you, I'm curious about these headphones because they seem to be the new kid on the block for speed and neutrality past the k701 and sa5k which I am also looking at).
The K701 and sa5k are not in the same league as the HD800.


Considering the price of the HD800 I would hope not.

post #59 of 85


As IPodPJ very constructively pointed out on page 2 of this thread
 

Quote:
Originally Posted by IPodPJ View Post

Each HD800 varies in tonal balance. When at the last meet, I tried Uncle Erik's HD800 on a vinyl rig with my cable and compared them to my HD800 with the mod. His pair had a little more bass than mine did. So you won't be able to find one mod that will work for everyone, since all pairs of HD800 measure differently.
 



and in stark contrast to many of the posters here, my HD800s have always sounded too dark, with lower harmonics emphasized and upper harmonics missing.  So adding a Moon Silver Dragon V3 cable helped a whole lot, but didn't really solve the false timbre.

 

So, if you wizards have an idea how to correct the HD800 in the other direction, could you please share it?

post #60 of 85
Thread Starter 

 

Originally Posted by budx3385 View Post
 

As IPodPJ very constructively pointed out on page 2 of this thread...
 

«Each HD800 varies in tonal balance. When at the last meet, I tried Uncle Erik's HD800 on a vinyl rig with my cable and compared them to my HD800 with the mod. His pair had a little more bass than mine did. So you won't be able to find one mod that will work for everyone, since all pairs of HD800 measure differently.» 

 

I doubt that such massive deviations are the norm; the posted individual FR graphs just show marginal differences. My friend Kurt's new pair had the same sonic balance as mine when I auditioned it, just showed the initial unrefinement I recall from mine.

 

...and in stark contrast to many of the posters here, my HD800s have always sounded too dark, with lower harmonics emphasized and upper harmonics missing. So adding a Moon Silver Dragon V3 cable helped a whole lot, but didn't really solve the false timbre.

So, if you wizards have an idea how to correct the HD800 in the other direction, could you please share it?

 

Since the main effect of the mod is the reduction of inner reflections, the reduced treble intensity is the result of reduced parasitic transient corruption – the direct sound from the membrane has the same treble content as before. Hence it is the better solution than a cable with the same treble-reducing effect, which reduces the whole signal, direct sound and parasitic reflections. That's not to say that all a cable does is amplitude-response modifications, though, but it's one important component, and it certainly can't eliminate earpiece reflections. So independent of the desired sonic balance, in your case I would try the mod anyway and then start from there. The more so as it has a beneficial effect on the relation between mid-treble and upper treble. To my ears the original mid-treble emphasis has indeed somewhat outshone the upper treble – a phenomenon that's almost gone since the mod, not least because the 6.3-kHz peak now is perceivedly reduced to almost zero. Add to this the nice sparkle the Silver Dragon adds to the upper treble...

 

The only solution that comes to mind – if after the mod the result is still on the dark side for your ears – is active equalizing. Have you already tried different earpiece placements? I wear my HD 800 very low for optimal results.


Edited by JaZZ - 9/5/10 at 3:41pm
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