tekerugburn said:

I'm saying if they want to mod their phones, they should do it right.  If the first person that shows this isn't right in his application of a mod, everyone who follows said mod is doing it wrong too.  So you haven't done mods before so you can't really talk...you are correct on that.  Doing a mod and simply saying it does this doesn't make it true or correct.  Now if you want to use dynamat; you should remove the foil and leave the black tar sticky stuff behind.  If you want to lessen vibration, putting dynamat at the back of the cups is the least optimal place to put it.  

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I've done mods before... And they usually do work. What does not make any sense is just harass people before even trying the mod, but I suppose you can keep trolling around and making weird assumptions. Your advices would be much more appreciated with a better tone in your posts.

ashade said:

I've done mods before... And they usually do work. What does not make any sense is just harass people before even trying the mod, but I suppose you can keep trolling around and making weird assumptions. Your advices would be much more appreciated with a better tone in your posts.

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Tone? seriously?  
 
Why would I try a mod that isn't theoretically sound?
 
Like I said, if you want to reduce vibration...dynamat needs to be as close to the driver as possible since well the driver is what is causing the vibration.  You want to stop it as close to the source before it spreads outward.  Assumptions?  These aren't assumptions; its common sense.  
 
Have ya measured your mods before?  then how do you know they work?  Because the OP of the mod said so?  Now if you think I'm trolling I'm not.  I'm letting modders know whats sound modding and whats more than likely a placebo.  

tekerugburn said:

Tone? seriously?  

Why would I try a mod that isn't theoretically sound?

Like I said, if you want to reduce vibration...dynamat needs to be as close to the driver as possible since well the driver is what is causing the vibration.  You want to stop it as close to the source before it spreads outward.  Assumptions?  These aren't assumptions; its common sense.  

Have ya measured your mods before?  then how do you know they work?  Because the OP of the mod said so?  Now if you think I'm trolling I'm not.  I'm letting modders know whats sound modding and whats more than likely a placebo.  

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Nice, thank you very much for the class of physics. You are a really nice guy. Have a nice evening.

Just wanted to bring this thread back from the dead, as I'm interested in picking up a pair of 1Rs and comparing them to the Senn Momentums. My impressions were that the two, unmodded, had a fairly similar sound signature - both being mid-centric, although the Momentums supposedly have better technical qualities and 1Rs have better soundstage and comfort. After this mod, how does the 1R stack up? From reading impressions I'm afraid that there might be too little bass, especially for portable usage. Any thoughts?

I haven't heard the Momentums, but the 1R's bass massively improves after the mod

tekerugburn said:

   
Tone? seriously?  
 
Why would I try a mod that isn't theoretically sound?
 
Like I said, if you want to reduce vibration...dynamat needs to be as close to the driver as possible since well the driver is what is causing the vibration.  You want to stop it as close to the source before it spreads outward.  Assumptions?  These aren't assumptions; its common sense.  
 
Have ya measured your mods before?  then how do you know they work?  Because the OP of the mod said so?  Now if you think I'm trolling I'm not.  I'm letting modders know whats sound modding and whats more than likely a placebo.  

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A placebo? ROFL. I had to check to see if I'd put the right headphones on because the sound was so different!
 
You have to nerve to say that it's not theoretically sound; scientific theory is best described as the best explanation for empirical evidence, right? Well you haven't even heard them yet, and dismiss every account provided in this thread on the basis of nothing more than your inability to account for the change. That's not a very scientific attitude, you need more to back up your hypothesis that 'I can't understand it'.
 
 

Why would i try a mod that isn't scientifically sound?

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Because that's what science is? Trying new stuff and measuring the result?

I got my MSR-1Rs and used them without the mod for about a week.
I made the mod today, but I didn't have any dynamat, so I took some pc damming mats which I had lying around. I didn't notice a huge difference, but I can hear stuff I couldn't before and the bass is a little bit better.
 
I'm gonna try to get my hands on some dynamat though to compare it. 

I got my headsets about two weeks ago and decided to only mod the right side with Dynamat.  I then converted some flac audio tracks to mono, and then tested with those.
In all honesty I don't hear much of a difference after the mod.  The right side doesn't seem to have tighter bass to my hearing.
 
That being said, I know my hearing is less than perfect, so maybe that has to do with it.  Also, I'm in no means an audiophile like a lot of the people here, so I might just not be able to tell the difference.
 
I'll of course do the left side next to complete the mod.  If nothing else, it gives me bragging rights to have modded headphones
 
Of course YMMV... 
 
- Olivier

Did the mod last weekend and it really does seem to have made some substantial improvements to these headphones - slight reduction in bass quantity and a huge reduction in bass distortion. The headphones sound far cleaner and much more even now. All credit for the mod goes to the excellent comments in this thread and to Purrin for his longer description and notes on how to do the mod.
 
#1. Picked up some Dynamat and polyfill acoustic fiber. Don't use cotton or pillow stuffing - its not the same thing. 
 

 
#2. Opened the cups up. Slid something thin in gently at the 9:00 and 12:00 position to get the plastic clip holding the pads on to unlock. (In my case, the "something thin" was the handle of a small measurement spoon.) Once you get one of the clips to unlock, the pads will fall right off.
 

 
#3. Used the Dynamat to mass load the back of the cups. Freezing the Dynamat helped make it easier to work with. 
 

 
#4. Placed a couple (very small) pieces of Dynamat on the back of the driver. I may go back later and place some on a few spots on the baffle as well. Stuffed the cups with acoustic fiber.
 

 
#5. Same with the other side. Providing a closer shot of how I lined up the Dynamat. I didn't try to make a perfect mould of the back of the cup - I just sliced out a reasonable circle and worked it until it was sufficiently adhered and air bubble free.
 

 
#6. Again, as with the other side, small pieces of Dynamat on the back of the driver and filled the cups with acoustic fiber. (Don't cover up any holes or venting ports). 
 

 
#7 Close them up carefully. Put the pads back on. Enjoy! (Bonus: shot of my feline assistant cleaning his tail.)
 

Does anyone have a small piece of dynamat for sale, so it would be possible to send it in a letter to save shipping cost? I only need it for these 'phones and the price + shipping to switzerland is quite high on amazon.

I'm in Sweden and have a non-branded one that is the same thickness and materials as the Dynamat Xtreme if you're interested. just send me a PM and I'm sure we could work it out. it should be more than enough for a pair of 1R.
it should provide the same properties as the real stuff - at least that's what the guys I got it from told me, a car audio shop. they used Dynamat before replacing it with this stuff.
 
nice job AustinValentine btw, much cleaner done than mine. I used WAY less of the fiber though.

I received my MDR-1r today. Got them on sale the silver/brown pair. God they sound so raw in some areas!
 
Now here is the funny part. My first and last good headphones is...the Denon AH-D1001 !!  Did the whole dynamat and recable mods on them. I absolutely love them - they sound fab out of every source I have. So here I am planning to do the whole mod over again !
 
In there current state ( well, only 1 day old ) the 1R's are not up to my Denon's. But I think they have potential. You can imagine how my eyes rolled to heaven when I came across this very same mod for the 1R's ! Well of course I feel the mod is worth a try given my previous experience from doing it. I do not have any dynamat left as I threw it away as I didn't think I'd ever need the stuff again lol.
 
Would anyone here have some to purchase at a reasonable price - just enough for the mod? Thanks.
 
 
 
EDIT: update, getting some Dynamat off another user on here. 

Could anyone confirm if this mod also improves the new MDR 1A ? 

Yes this improves MDR-A1 too. Just got mine done. Materials are a bit different with my version, but seems to work fine.
Materials:
- Some car-audio dynamat-ish stuff, very similiar to dynamat.
- Fiber filling from an old speaker, I'm not sure about from what it's made of. Feels synthetic.
- ~5mm thick isolation foam, which I found from an old subwoofer-element packaging. Probably ment to be cut in shape between speaker and casing.
 
https://scontent-a.xx.fbcdn.net/hphotos-xap1/l/t31.0-8/10869756_10152909108296950_6900961580058301467_o.jpg

Does anyone know the pinout of the audio jack on these? I want to make a balanced cable.
 
Also, JayEm2, can you comment on the effect of the mods. I may decide to do this to my pair