Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › = Hifiman HE500 & HE400 Jergpad Mod v2.5 =
New Posts  All Forums:Forum Nav:

= Hifiman HE500 & HE400 Jergpad Mod v2.5 = - Page 82

post #1216 of 1667

If it did impact sound significantly, I'd question your hearing :)

post #1217 of 1667
Thread Starter 
Quote:
Originally Posted by davidsh View Post
 

If it did impact sound significantly, I'd question your hearing :)

Why? That sounds like a loaded statement.

post #1218 of 1667

Not going to cover that round bar on the inner face too?

post #1219 of 1667
Thread Starter 
Quote:
Originally Posted by mlxx View Post
 

Not going to cover that round bar on the inner face too?

It's hard to bond a thin strip of adhesive-backed felt securely to the metal bar, besides it's such a small irregular surface area that it should be negligible.

post #1220 of 1667
Quote:
Originally Posted by jerg View Post
 

 

Lined the outer face of the drivers with felt (including the inner ring of exposed plastic right below the grills). Much less of an impact on sound relative to the addition of the felt patterns on the inner faces of the drivers; sure looks snazzy though.

 

Just saw this post here, so feel free to ignore my question on the other forum.  Yeah, I like the way it looks, esp. with the cloth under the grills.  Almost no silver shows, and what does is pretty muted.

post #1221 of 1667
Thread Starter 
Quote:
Originally Posted by ThurstonX View Post
 

 

Just saw this post here, so feel free to ignore my question on the other forum.  Yeah, I like the way it looks, esp. with the cloth under the grills.  Almost no silver shows, and what does is pretty muted.

Yeah I love the aesthetics that this mod gives to the other faces of the drivers, mixed with the regrilling mod. Really accentuates the driver magnet patterns, black + silver looks quite elegant.

post #1222 of 1667
Quote:
Originally Posted by jerg View Post
 

Yeah I love the aesthetics that this mod gives to the other faces of the drivers, mixed with the regrilling mod. Really accentuates the driver magnet patterns, black + silver looks quite elegant.

Did you just measure with a ruler the dimensions for the felt strips you cut out?    

post #1223 of 1667
Also, do you think using dynamat would work for this mod? I'm thinking something along the lines of the Lawton tune for Denons.
post #1224 of 1667
Quote:
Originally Posted by kard16 View Post
 

Did you just measure with a ruler the dimensions for the felt strips you cut out?    

 

That's what I did; just a cheap-o wooden ruler.  I used the mm side.  The great thing about the Creatology felt is that it's easy to mark on the backing.  And the scissors I used for cutting the stiff sheet were $3 from a hardware store bargain bin.  Nothing fancy like the Fiskars.  I made a line 4mm in from the edge and cut very slowly and carefully.  It's a ridiculously thin strip, but the perfect fit.  Then just snip and trim for each individual piece.  For the few funky, not straight pieces, I used the precise scissors and trimmed until I got it.  YMMV, but that method worked great for me.

 

I'll have some photos later today.  Trying a new felt addition, nothing fancy.  Jury's out, but I'm hopeful.

post #1225 of 1667
Quote:
Originally Posted by kard16 View Post

Also, do you think using dynamat would work for this mod? I'm thinking something along the lines of the Lawton tune for Denons.
Btw, here's what I was taking about:
http://www.fatmat.com/shop/fatmat-by-the-sheet-6580

It's 50 mils thick (~1.3mm). I might be the guinea pig and use that instead of felt, unless someone thinks it's a terrible idea.
post #1226 of 1667
Quote:
Originally Posted by kard16 View Post


Btw, here's what I was taking about:
http://www.fatmat.com/shop/fatmat-by-the-sheet-6580

It's 50 mils thick (~1.3mm). I might be the guinea pig and use that instead of felt, unless someone thinks it's a terrible idea.

 

Interesting, never heard of that, but I can think of a few applications for it.  Maybe I not understand the product correctly, but if applied to, say, a car, to dampen external noise, it would be applied on the inside, and the rubberized side absorbs external noise.  Of course, it depends on what surface it's affixed to, I suppose, and cars have several.  Obviously a bit different than this felt mod.  The reasons I would use felt are: 1) cost; 2) the aluminum side of the FatMat.  Wouldn't that defeat the purpose of absorbing the back waves, as it's reflective in and of itself, and the aluminum side would necessarily be facing out (other side is the sticky one).

 

Anyway, jerg can give a better answer, and I'm curious about FatMat for other things, esp. computers.  Old ones can be quite noisy.

post #1227 of 1667

I'd do that felt mod just for the looks. Damn that looks sexy as hell. Too bad it's of no use to the HE-400.

post #1228 of 1667
Quote:
Originally Posted by ThurstonX View Post

Interesting, never heard of that, but I can think of a few applications for it.  Maybe I not understand the product correctly, but if applied to, say, a car, to dampen external noise, it would be applied on the inside, and the rubberized side absorbs external noise.  Of course, it depends on what surface it's affixed to, I suppose, and cars have several.  Obviously a bit different than this felt mod.  The reasons I would use felt are: 1) cost; 2) the aluminum side of the FatMat.  Wouldn't that defeat the purpose of absorbing the back waves, as it's reflective in and of itself, and the aluminum side would necessarily be facing out (other side is the sticky one).

Anyway, jerg can give a better answer, and I'm curious about FatMat for other things, esp. computers.  Old ones can be quite noisy.

Viscoelastic materials keep anything it's applied to from vibrating (which causes unwanted noise). If we were to apply it to the metal array and on the inside ring of the ear piece, it would prevent vibration of those structures. As for absorbing the back waves, that's a good point. Perhaps there's another product without an aluminum face.
post #1229 of 1667
Thread Starter 
Quote:
Originally Posted by kard16 View Post


Viscoelastic materials keep anything it's applied to from vibrating (which causes unwanted noise). If we were to apply it to the metal array and on the inside ring of the ear piece, it would prevent vibration of those structures. As for absorbing the back waves, that's a good point. Perhaps there's another product without an aluminum face.

Yeah I ain't trying to reduce vibration, because the HE500 drivers are already rigid enough also they already have felt built in so that contacts with the cups are deadened. What I want to do is to minimize unwanted soundwaves bouncing around in the cheek/driver/earpad space when you wear the cans; the evenly-spaced flat metal surfaces of the drivers are 'perfect' for that to occur and potentially cause resonance / fuzziness issues.

 

In practice I think this mod does reduce a substantial amount of background fuzziness, audio cues and ambiance get more into focus.

 

 

Edit: but i guess it wouldn't hurt to do a 'laminate' thing where you layer the dynamat strips down first, then layer the adhesive-backed felt on top. As long as that stack won't get too crazily thick (which might have some unwanted side effect) it might be okay. I still don't think unwanted vibration is a major issue with Hifiman's drivers though.


Edited by jerg - 11/19/13 at 9:56am
post #1230 of 1667
Quote:
Originally Posted by jerg View Post

Yeah I ain't trying to reduce vibration, because the HE500 drivers are already rigid enough also they already have felt built in so that contacts with the cups are deadened. What I want to do is to minimize unwanted soundwaves bouncing around in the cheek/driver/earpad space when you wear the cans; the evenly-spaced flat metal surfaces of the drivers are 'perfect' for that to occur and potentially cause resonance / fuzziness issues.

In practice I think this mod does reduce a substantial amount of background fuzziness, audio cues and ambiance get more into focus.

The viscoelastic material should also absorb the backwaves. Weather it's worth the cost, if it's easy to work with, or has any other unintended consequences is another matter
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphones (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › = Hifiman HE500 & HE400 Jergpad Mod v2.5 =