[extremanticus]

Hi guys
I have not the most common question on the membrane. Of what material is it made of? 
That kind
Or this information is not disclosed by the manufacturer?
I'm not native English, no.

 

[liamstrain]

It can be a number of things... some variety of molded cellulosic plastic are most common. Each manufacturer has their own version - some including kevlar, titanium, carbon fiber, etc... 

 

[jackwess]

They also use mylar, another material found on the Ultrasone Edition 8.  

 

[liamstrain]

Yes, I forgot about the polyesters and their variants. 
 
Really, you are looking for things that have controllable and high stiffness/thickness ratios as well as relatively light weight. 

 

[extremanticus]

Quote:

It can be a number of things... some variety of molded cellulosic plastic are most common. Each manufacturer has their own version - some including kevlar, titanium, carbon fiber, etc... 

As i know kevlar is something like that
 
My interest here is limited to type of membranes in the first post. I heard it's BoPET also know as Mylar.
 
 
I need to replace the membrane on the headphones. I know that much easier to buy new, but where I am now only building materials are sold.

 

[Eee Pee]

And I just noticed that light can pass through the Sennheiser HD 600 membrane...

 

[liamstrain]

Quote:

As i know kevlar is something like that
 
My interest here is limited to type of membranes in the first post. I heard it's BoPET also know as Mylar.
 
 
I need to replace the membrane on the headphones. I know that much easier to buy new, but where I am now only building materials are sold.

Yes, Mylar was addressed. Cellulosic plastics can be similar to BoPET and polyester variants. 
 
It's the specific ratio of stiffness, and the moulded shape (which controls local stiffness) that is important. You can't just buy a piece of mylar and glue it on...
 

 

[power]

what headphones use carbonfiber and or kevlar for there driver membrane?

 

[extremanticus]

About Mylar.
The question now is to buy the material required thickness and size.
As far as I know, its thickness should be about 5 microns or less.
 
 
Quote:

It's the specific ratio of stiffness, and the moulded shape (which controls local stiffness) that is important. You can't just buy a piece of mylar and glue it on...

I'm sorry, I have slow internet.
It's like a calculating with the expectation of the magnet and the coil?

 

[jackwess]

Quote:

what headphones use carbonfiber and or kevlar for there driver membrane?

I've only seen Kevlar reinforced cables on headphones to the moment. Im curious too. 

 

[Neighbour]

Tell me a capsule with 5 micron and less membrane. Electrostats, but no dynamics. Dynamic.Microphones capsules using about 10 micron. 
The capsule is used for dampening and perform only well with the specific membrane.  

 

[NamelessPFG]

Older dynamic driver diaphragms used to be made out of paper. I'm not quite sure why it's considered a bad thing these days.
 
Electrostatic driver diaphragms are almost certainly boPET/Mylar, with thicknesses ranging from 2.5 to 0.5 microns, most in the 1.5 or 1.35 micron range.

 

[extremanticus]

Thanks to all.
I learned all I wanted