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= Hifiman HE500 & HE400 Jergpad Mod v2.5 = - Page 15

post #211 of 1702
Guys..everyone is talking about taking out the silicone ring INSIDE of the pads.. I cant find any silicone rings inside the pads..only foam..am i missing something? Can someone explain what those silicone ring is? I cut off the dust fabric and the rubber flap already..there is only a small ridge on the side where the pleather is glued to the original flap.but as i said..no silicone ring inside pads..can someone pls post a pic/ explain where that ring is? Thanks!
post #212 of 1702
Quote:
Originally Posted by hifimanrookie View Post

Guys..everyone is talking about taking out the silicone ring INSIDE of the pads.. I cant find any silicone rings inside the pads..only foam..am i missing something? Can someone explain what those silicone ring is? I cut off the dust fabric and the rubber flap already..there is only a small ridge on the side where the pleather is glued to the original flap.but as i said..no silicone ring inside pads..can someone pls post a pic/ explain where that ring is? Thanks!

 

It's not silicone, it's foam I believe.

post #213 of 1702
Quote:
Originally Posted by jerg View Post

You could definitely fit another circle of holes in there closer to the inner rim, based on the photos. Also in general, expand the hole sizes as much as possible without risking the integrity of the fabric holding the foam in.


All right, so I ended up drilling a new circle of fairly close holes in the inner rim, almost facing the ear, expecting some major improvements. Well, I have to say, it was back to square one... Horrible frequency imbalance.

 

This time I got sibilance And Tizziness (like unbearable treble from 4 to 12kHz...), the recessed upper mids were back (more like the mids kind of faded away), I still had some lower mid-bass thump somewhere in the background, and no sub-bass anymore. Quite frustrating really.

 

So in despair, and because I still need my music to sound like music and not hurt all the time, I eventually put some clear tape on maybe 2/3 of the new holes I'd just drilled in the inner rim, leaving some 8 or so holes close to the ear and the huge holes from before on the underside. Balance almost went back to where it was before and to acceptable levels of treble, upper mids were back but the bass was still a bit lacking compared to before (more like if now feels somewhat plasticky, probably because of the temporary tape-job solution).

 

Turns out I ordered another set of pleathers to play with again. Way to throw 25 euros in the trash... At least I can try everything I want with the old set now, and depending on my findings, I'll drill just enough holes in the new set to tune the balance to my liking.

 

Lesson here is to Not drill 20 extra holes without listening to the change half way through... Still, a very nice mod once you're done with it, makes the headphones sound so good, intimate and balanced. I'm not sure I could have liked the HE-400 over the long term with the velours and those bleeding highs...

post #214 of 1702

Very interesting to hear.

post #215 of 1702
Quote:
Originally Posted by jerg View Post

 

I'm not too sure about having the whole base lifted by tape stacks. Based on my sinewave sweeps, doing this around the full circle of the mounting ring causes an emphasis of midbass and roll-off of subbass, so you will perceive more bass punch but overall bass response will become less linear/extended.

 

That's why I kept the "vent minimod" as a partial lifting so the pads are still able to conduct the subbass through sections of the mounting rings that are not lifted off the cups.

 

Jerg,

 

Thanks for sharing your view and observation of my implementation.  I'll make further adjustments today to move in the right direction.  However, with what I had performed, wasn't scientific with measurements, etc., my ears were used as a gauge.  I have enough misc. materials to further try the process you've generously described.

 

Thank you for your efforts in time spent on improving our HifiMAN Journey!

post #216 of 1702
Quote:
Originally Posted by Audiofanboy View Post


All right, so I ended up drilling a new circle of fairly close holes in the inner rim, almost facing the ear, expecting some major improvements. Well, I have to say, it was back to square one... Horrible frequency imbalance.

 

This time I got sibilance And Tizziness (like unbearable treble from 4 to 12kHz...), the recessed upper mids were back (more like the mids kind of faded away), I still had some lower mid-bass thump somewhere in the background, and no sub-bass anymore. Quite frustrating really.

 

So in despair, and because I still need my music to sound like music and not hurt all the time, I eventually put some clear tape on maybe 2/3 of the new holes I'd just drilled in the inner rim, leaving some 8 or so holes close to the ear and the huge holes from before on the underside. Balance almost went back to where it was before and to acceptable levels of treble, upper mids were back but the bass was still a bit lacking compared to before (more like if now feels somewhat plasticky, probably because of the temporary tape-job solution).

 

Turns out I ordered another set of pleathers to play with again. Way to throw 25 euros in the trash... At least I can try everything I want with the old set now, and depending on my findings, I'll drill just enough holes in the new set to tune the balance to my liking.

 

Lesson here is to Not drill 20 extra holes without listening to the change half way through... Still, a very nice mod once you're done with it, makes the headphones sound so good, intimate and balanced. I'm not sure I could have liked the HE-400 over the long term with the velours and those bleeding highs...

 

I also used some clear tape to close some of those holes. And I think this tape reflects sound in a particular way, increasing the soundstage, and sparkle. I quite like it!

 

However, it falls off easily, so I wonder if duct tape works the same way.

Duct tape isn't as easy to remove though...

post #217 of 1702
Quote:
Originally Posted by wje View Post

Jerg,

Thanks for sharing your view and observation of my implementation.  I'll make further adjustments today to move in the right direction.  However, with what I had performed, wasn't scientific with measurements, etc., my ears were used as a gauge.  I have enough misc. materials to further try the process you've generously described.

Thank you for your efforts in time spent on improving our HifiMAN Journey!

Show us a pick of what you end up with! Please.
post #218 of 1702
Quote:
Originally Posted by Marleybob217 View Post

 

I also used some clear tape to close some of those holes. And I think this tape reflects sound in a particular way, increasing the soundstage, and sparkle. I quite like it!

 

However, it falls off easily, so I wonder if duct tape works the same way.

Duct tape isn't as easy to remove though...


My thoughts exactly, I only used clear tape to make sure I wouldn't rip the whole pad apart if I had to remove it. It's not coming off easily but I touches my ears from time to time, which really annoys me on 400$ headphones; I'm the only one to blame here, mistake will be corrected soon. On the other hand, I don't really like the sound the tape creates... But you might be right about the soundstage though, I'm hearing some funny reflections that make the sound *seem* large but I'm not sure it's actually staging. I'll probably replace it with better tape (electrical?) when I mutilate my next *new* pleathers and end up not caring about the old ones except as spares.

 

Or, come to think of it, I could also remove the tape and keep the old treble heavy pleathers for the occasional treble light album, classic rock and the such. At least I'll be able to justify having bought an extra pair of pads that way...

post #219 of 1702
Quote:
Originally Posted by Audiofanboy View Post


My thoughts exactly, I only used clear tape to make sure I wouldn't rip the whole pad apart if I had to remove it. It's not coming off easily but I touches my ears from time to time, which really annoys me on 400$ headphones; I'm the only one to blame here, mistake will be corrected soon. On the other hand, I don't really like the sound the tape creates... But you might be right about the soundstage though, I'm hearing some funny reflections that make the sound *seem* large but I'm not sure it's actually staging. I'll probably replace it with better tape (electrical?) when I mutilate my next *new* pleathers and end up not caring about the old ones except as spares.

 

Or, come to think of it, I could also remove the tape and keep the old treble heavy pleathers for the occasional treble light album, classic rock and the such. At least I'll be able to justify having bought an extra pair of pads that way...

It is fun to experiment with this stuff. But actually I just want it to sound good, without having to worry about the amount of holes or tape etc. 

 

That's why I bought the j$ pads, until I receive them the jerg pads are very fun to experiment with. 

 

Good luck with your new pads! And remember, the J$ are still being sold by wje.

post #220 of 1702
Quote:
Originally Posted by Marleybob217 View Post

It is fun to experiment with this stuff. But actually I just want it to sound good, without having to worry about the amount of holes or tape etc. 

 

That's why I bought the j$ pads, until I receive them the jerg pads are very fun to experiment with. 

 

Good luck with your new pads! And remember, the J$ are still being sold by wje.


Haha, by the time I'm happy with my modded pads, I'll probably have spent the 50$ I could have spent on j$ pads in the first place. It's like tube rolling, where's the fun if you get everything right away? I'll try to stay away from tape on my next pads though, I just don't like the idea really...

 

Btw, does anyone know if spare pleathers come with an extra mounting ring? Or if you can even buy a spare mounting ring for HifiMAN phones, cuz that would be really convenient  to switch pads.

post #221 of 1702
Quote:
Originally Posted by Audiofanboy View Post


Haha, by the time I'm happy with my modded pads, I'll probably have spent the 50$ I could have spent on j$ pads in the first place. It's like tube rolling, where's the fun if you get everything right away? I'll try to stay away from tape on my next pads though, I just don't like the idea really...

 

Btw, does anyone know if spare pleathers come with an extra mounting ring? Or if you can even buy a spare mounting ring for HifiMAN phones, cuz that would be really convenient  to switch pads.

 

When you order the replacement HifiMAN pads, they do come with new rings.

post #222 of 1702
Quote:
Originally Posted by wje View Post

 

When you order the replacement HifiMAN pads, they do come with new rings.


Oh really? Cool. That explains the price; so I didn't lose 25 euros then. Good to know!

post #223 of 1702
Has anyone who properly performed this mod to their pleathers not found improvement or dissatisfied with the results sound wise?
post #224 of 1702
Quote:
Originally Posted by mac336 View Post

Has anyone who properly performed this mod to their pleathers not found improvement or dissatisfied with the results sound wise?

Im going to go out on a limb and say no. jerg knows what he's doing. Don't want to waste your pleathers?

post #225 of 1702
Thread Starter 
Quote:
Originally Posted by mac336 View Post

Has anyone who properly performed this mod to their pleathers not found improvement or dissatisfied with the results sound wise?

 

 

>not found improvement

 

Impossible unless you did something completely different; stock pleathers have close to zero damping, so any significant damping boost (via adding holes etc) will have a positive impact on the sound.

 

 

 

>dissatisfied with the results sound

 

Possible, if you overdamp the sound because you added way too many large holes, and that you wanted a darker sound still; too much damping holes = sound might become a bit too thin. The trick is to add holes incrementally, and decide at one point if enough holes are enough.

 

For instance, I find that velour pads damp HE500's sound way too much, so vocals have too much treble and not enough midrange body to them.

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