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My DIY electrostatic headphones - Page 87

post #1291 of 1299

3M Super 77 was one of the adhesives I tested.  Poor results.  Like you said, it bubbles up and makes the diaphragm lose tension.  3M 90 did better but it comes out in a thick stream so it's not easy to apply.  Contact cement blows them away though.  Any pics of your CNC? :)

post #1292 of 1299
Thread Starter 
I have mentioned it many times that contact cement is the only way to glue your diaphragms. smily_headphones1.gif
post #1293 of 1299
I can't help marvel over the simplicity of e-stat drivers. What seperates flagship material from something like a humble, basic lambda in your opinion?
Edited by davidsh - 4/15/14 at 2:17am
post #1294 of 1299
Looks can be deceiving, maybe it's possible to get something working, but there are so many variables in the design (and it's far from just the electrode) that it's a feat to make something great sounding and in a consistent manner.
post #1295 of 1299
Thread Starter 
Quote:
Originally Posted by davidsh View Post

I can't help marvel over the simplicity of e-stat drivers. What seperates flagship material from something like a humble, basic lambda in your opinion?


In my opinion, Lambda series are very good headphones.  Even the entry level SR202 or SR207 are very good already.

 

In terms of sound quality, it's very difficult to say if the flagships are that much better.  I think it's up to a personal preference, if you don't consider about the cost factor.

 

Wachara C.

post #1296 of 1299
Thread Starter 

I've almost forgotten that I made this pair of HE-6 to electrostatic conversion.  I'm listening to them right now.  :)

 

 

If anybody has a pair of broken HE-5 or HE-6 laying around, I highly recommend that you try this conversion.  :L3000:

 

Wachara C.

post #1297 of 1299
Quote:
Originally Posted by chinsettawong View Post
 

I've almost forgotten that I made this pair of HE-6 to electrostatic conversion.  I'm listening to them right now.  :)

 

 

If anybody has a pair of broken HE-5 or HE-6 laying around, I highly recommend that you try this conversion.  :L3000:

 

Wachara C.

 

I have and HE-400, which am not using much as I have HE-6 now. Not able to sell them as prices has come down a lot, I paid $400 and if I sell now may be lucky to get 250$.

 

Can you please suggest how to attempt this conversion, look interesting, willing to try for fun part of it. 

post #1298 of 1299
Thread Starter 

Hi musicinmymind,

 

A friend of mine sent me this pair of broken HE-6 that he didn't want it anymore.  I took out all the parts inside, made the inside measurements, drew all the parts, and made the parts using my CNC machine.  If you have access to a CNC router, you can do it.

 

If your HE-400 aren't broken, don't do it.  My biggest headache when making headphones is to make a decent and good looking headband.  I basically just use the HE-6's cups and headband for my DIY headphones.

 

 

By the way, the diaphragm diameter of these headphones is as big as Stax SR-007.  

 

 

Wachara C.

post #1299 of 1299
Quote:
Originally Posted by n3rdling View Post
 

Any pics of your CNC? :)

Sure. It is large, but I only tend to use the first third to half of the table. Still fraught with issues -- mostly stemming from a mediocre stepper driver system, somewhat under powered steppers, and the use of threaded rod rather than proper acme screws.  Nevertheless, it does seem to make parts with a fairly high degree of repeatability and accuracy.  Certainly better than I could do by hand!

 

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